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1
Romero-Loera, Sujey, Luis Eduardo Cárdenas-Lailson, Florencio de la Concha-Bermejillo, Braulio Aaron Crisanto-Campos, Carlos Valenzuela-Salazar, and Mucio Moreno-Portillo. "Comparación de destrezas en simulador de laparoscopia: imagen en 2D vs. 3D." Cirugía y Cirujanos 84, no. 1 (January 2016): 37–44. http://dx.doi.org/10.1016/j.circir.2015.06.032.
Повний текст джерела
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Loreto Brand, Mariana Elisa. "Cirugía Colo-rectal Laparoscópica en 3D. ¿Recomendamos su implantación?" Archivos de coloproctología 1, no. 2 (September 2, 2018): 14. http://dx.doi.org/10.26754/ojs_arcol/arch_colo.201823009.
Повний текст джерелаАнотація:
La cirugía laparoscópica en 3D se presenta como una alternativa a los inconvenientes de la laparoscopia convencional. A pesar de los resultados discordantes de los primeros estudios realizados en 1998, los avances tecnológicos, la cada vez más frecuente experiencia de los cirujanos con las intervenciones laparoscópicas y su indicación habitual, han permitido que nuevas investigaciones en dicho campo muestren unos resultados más alentadores.
El uso de tecnología tridimensional en la cirugía laparoscópica ha evolucionado desde sus inicios, pudiendo identificar situaciones propias por su uso como el ghosting-crosstalk y conceptos nuevos para el equipo quirúrgico que no se habían presentado en la cirugía laparoscópica convencional, como el de estereoagudeza / estereoceguera.
A pesar de los beneficios hipotéticos y comprobados de la cirugía laparoscópica tridimensional (mejor percepción de profundidad, seguridad al realizar movimientos complejos, mayor precisión quirúrgica y menor curva de aprendizaje), los puntos débiles a tener en cuenta son: necesidad de estereopsis normal (normalmente no estudiada en el equipo quirúrgico), beneficio en ciertos pasos de la cirugía (anastomosis y suturas) con menor grado de ventaja en las intervenciones con menos necesidad de estas acciones y pocos ensayos clínicos con un diseño adecuado y un número de casos que brinden suficiente validez estadística.
Por todo esto, es imposible recomendar al 100% la cirugía colo-rectal laparoscópica sin mayores estudios a disposición; aunque si se puede hacer mención a la alta posibilidad de que la misma sea poco a poco aceptada, siendo coherente y esperable con los avances tecnológicos y el interés de los mismos cirujanos sobre esta técnica.
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Sagae, Univaldo Etsuo, Doryane Maria dos Reis Lima, Namir Cavalli, Lucia Matiko Takamatsu Sagae, Tomaz Massayuki Tanaka, Mauro Willemann Bonatto, Ricardo Shigeo Tsuchiya, Carlos Alberto de Carvalho, and Andrea Ishikawa Shiratori. "Importância da ultra-sonografia anorretal tridimensional na decisão terapêutica da endometriose profunda." Revista Brasileira de Coloproctologia 29, no. 4 (December 2009): 435–42. http://dx.doi.org/10.1590/s0101-98802009000400001.
Повний текст джерелаАнотація:
OBJETIVO: Este estudo visa demonstrar a importância da ultra-sonografia anorretal tridimensional (US 3D) no diagnóstico da endometriose profunda e o grau de acometimento do trato intestinal na decisão terapêutica da endometriose do septo retovaginal. MÉTODOS: Estudo prospectivo realizado entre março de 2007 e julho de 2009. Sessenta e cinco mulheres com endometriose pélvica e com queixas gastrointestinais foram avaliadas e submetidas a US 3D. Vinte pacientes, média de idade 33,7anos, com suspeita de foco endometriótico intestinal foram submetidas ao procedimento laparoscópico para a realização de inventário da cavidade abdominal e tratamento cirúrgico. RESULTADOS: Em dezenove mulheres (95%), os achados laparoscópicos confirmaram a presença do foco endometriótico retal. O procedimento realizado à laparoscopia foi: exérese de foco peritoneais (n= 1); ressecção parcial do retossigmóide (n= 9); exérese de nódulo de reto (n= 10). O tempo operatório médio por procedimento foi de 120 minutos. O tempo médio de alta foi 1,7 dias. Duas pacientes apresentaram como complicação o aparecimento de fistula retovaginal. CONCLUSÃO: Conclui-se que a ultra-sonografia anorretal tridimensional é exame específico na avaliação do segmento anorretal, decisivo na detecção de focos endometrióticos do septo retovaginal e avalia eventuais doenças associadas nesse segmento, determinando a estratégica terapêutico-cirúrgica adequada.
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Vivas Alban, Oscar Andres, and Diego Enrique Guzmán Villamarín. "Herramienta software para la práctica de la robótica quirúrgica." Ingenieria y Universidad 19, no. 1 (March 16, 2015): 7. http://dx.doi.org/10.11144/javeriana.iyu19-1.sprq.
Повний текст джерелаАнотація:
Este artículo presenta el desarrollo de una herramienta software para la práctica de la robótica quirúrgica que integra la utilización de robots quirúrgicos en un entorno virtual 3D y que lleva por nombre RoboSurgery. La herramienta ha sido diseñada para que los ingenieros puedan comprender el uso de los asistentes robóticos en operaciones de laparoscopia. Integra dos tipos de robots, un robot porta endoscopio (robot Hibou) y dos robots quirúrgicos (robots Lapbot), manipulados por joystick. El sistema permite observar en una ventana el interior del abdomen del paciente, imagen virtual que es generada por el endoscopio situado en el órgano terminal del robot Hibou, mientras que se manipulan los dos robots quirúrgicos con el fin de realizar una colecistectomía (extracción de la vesícula). Los resultados muestran un sistema virtual bastante útil para la comprensión del funcionamiento de los asistentes quirúrgicos, que permitirá en un futuro adicionar otros robots y otros procedimientos, además de mayor realismo al incluir algoritmos de deformación de órganos.
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Koppatz, Hanna E., Jukka I. Harju, Jukka E. Sirén, Panu J. Mentula, Tom M. Scheinin, and Ville J. Sallinen. "Three-dimensional versus two-dimensional high-definition laparoscopy in transabdominal preperitoneal inguinal hernia repair: a prospective randomized controlled study." Surgical Endoscopy 34, no. 11 (November 21, 2019): 4857–65. http://dx.doi.org/10.1007/s00464-019-07266-z.
Повний текст джерелаАнотація:
Abstract Background Three-dimensional (3D) laparoscopy improves technical efficacy in laboratory environment, but evidence for clinical benefit is lacking. The aim of this study was to determine whether the 3D laparoscopy is beneficial in transabdominal preperitoneal laparoscopic inguinal hernia repair (TAPP). Method In this prospective, single-blinded, single-center, superior randomized trial, patients scheduled for TAPP were randomly allocated to either 3D or two-dimensional (2D) TAPP laparoscopic approaches. Patients were excluded if secondary operation was planned, the risk of conversion was high, or the surgeon had less than five previous 3D laparoscopic procedures. Patients were operated on by 13 residents and 3 attendings. The primary endpoint was operation time. The study was registered in ClinicalTrials.gov (NCT02367573). Results Total 278 patients were randomized between 5th February 2015 and 23rd October 2017. Median operation time was shorter in the 3D group (56.0 min vs. 68.0 min, p < 0.001). 10 (8%) patients in 3D group and 6 (5%) patients in 2D group had clinically significant complications (Clavien–Dindo 2 or higher) (p = 0.440). Rate of hernia recurrence was similar between groups at 1-year follow-up. In the subgroup analyses, operation time was shorter in 3D laparoscopy among attendings, residents, female surgeons, surgeons with perfect stereovision, surgeons with > 50 3D laparoscopic procedures, surgeons with any experience in TAPP, patients with body mass indices < 30, and bilateral inguinal hernia repairs. Conclusion 3D laparoscopy is beneficial and shortens operation time but does not affect safety or long-term outcomes of TAPP.
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Raspagliesi, Francesco, Giorgio Bogani, Fabio Martinelli, Mauro Signorelli, Cono Scaffa, Ilaria Sabatucci, Domenica Lorusso, and Antonino Ditto. "3D Vision Improves Outcomes in Early Cervical Cancer Treated with Laparoscopic Type B Radical Hysterectomy and Pelvic Lymphadenectomy." Tumori Journal 103, no. 1 (March 10, 2016): 76–80. http://dx.doi.org/10.5301/tj.5000572.
Повний текст джерелаАнотація:
Purpose To evaluate the alterations on surgical outcomes after of the implementation of 3D laparoscopic technology for the surgical treatment of early-stage cervical carcinoma. Methods Data of patients undergoing type B radical hysterectomy (with or without bilateral salpingo-oophorectomy) and pelvic lymphadenectomy via 3D laparoscopy were compared with a historical cohort of patients undergoing type B radical hysterectomy via conventional laparoscopy. Complications (within 60 days) were graded per the Accordion severity system. Results Data of 75 patients were studied: 15 (20%) and 60 (80%) patients undergoing surgery via 3D laparoscopy and conventional laparoscopy, respectively. Baseline patient characteristics as well as pathologic findings were similar between groups (p>0.1). Patients undergoing 3D laparoscopy experienced a trend toward shorter operative time than patients undergoing conventional laparoscopy (176.7 ± 74.6 vs 215.9 ± 61.6 minutes; p = 0.09). Similarly, patients undergoing 3D laparoscopic radical hysterectomy experienced shorter length of hospital stay (2 days, range 2-6, vs 4 days, range 3-11; p<0.001) in comparison to patients in the control group, while no difference in estimated blood loss was observed (p = 0.88). No between-group difference in complication rate was observed. Conclusions 3D technology is a safe and effective way to perform type B radical hysterectomy and pelvic node dissection in early-stage cervical cancer. Further large prospective studies are warranted in order to assess the cost-effectiveness of the introduction of 3D technology in comparison to robotic assisted surgery.
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Benelli, Andrea, Virginia Varca, Marco Rosso, Francesca Peraldo, and Andrea Gregori. "3D versus 2D laparoscopic radical prostatectomy for organ confined prostate cancer: Our experience." Journal of Clinical Urology 12, no. 3 (October 8, 2018): 186–91. http://dx.doi.org/10.1177/2051415818800536.
Повний текст джерелаАнотація:
Objective: Three-dimensional (3D) laparoscopy was developed to overcome the main limitations of traditional laparoscopy. The aim of our study was to compare operative, functional and oncological results of 3D and two-dimensional (2D) laparoscopic radical prostatectomy. Materials and methods: A total of 102 consecutive patients with clinically localised prostate cancer underwent laparoscopic radical prostatectomy. Patients were randomly assigned into two groups, 2D high definition (HD) camera (50 patients) for the first and 3D HD camera (52 patients) for the second group. Total operative time, anastomosis time, blood loss, complications and pentafecta rates for both groups were compared. All patients had at least one year of follow-up. Results: Total operative time was, respectively, 143 ± 17 and 118 ± 15 minutes, with a mean anastomosis time of 31± 12 and 23 ± 12 minutes. Mean blood loss was 230 ± 30 ml with 2D vision and 175 ± 40 with 3D vision. Pentafecta was reached, respectively, by 46% and 50% of patients at 3 months and 60% and 67.3% at 12 months. 3D vision offers an increased speed if compared with traditional vision ( P=0.02). Pentafecta results were significantly better in the 3D group ( P=0.03). Conclusion: We believe that 3D laparoscopy offers important advantages for surgeons and patients; its use should be encouraged. Level of evidence: 1c
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Aguilar, Eliana, Pedro Luis Solarte Correa, Jesus Humberto Dorado, José María Sabater, and Oscar Andrés Vivas Albán. "Prototipo de exploración educativa basada en realidad mixta para cirugía con casco Meta 2." Ingeniería 28, no. 1 (November 20, 2022): e18543. http://dx.doi.org/10.14483/23448393.18543.
Повний текст джерелаАнотація:
Contexto: Los cirujanos de intervenciones mínimamente invasivas requieren ampliar la información para realizar las rutas de intervención, este artículo describe un prototipo de realidad mixta de carácter educativo o prequirúrgico que hace uso del Casco Metavisión Meta II. Se crearon objetos 3D de estructuras morfológicas para neurocirugía y laparoscopia a partir de imágenes obtenidas de resonancia magnética MRI y TAC de un paciente real, con el fin de simular el acceso al cerebro y hacer reconocimiento del área abdominal. Método: Este prototipo tiene un enfoque educativo cuyo objetivo es incentivar el reconocimiento de esquemas morfológicos de órganos, para lo cual se diseñaron tres pruebas. Estas pruebas consistieron en la búsqueda de tumores a través de la navegación y la interacción con un objeto exhibido en el casco de realidad mixta Meta 2. Para el área neurológica se dedicaron dos de las tres pruebas, en las dos primeras pruebas se midió el tiempo de búsqueda con cinco tumores, y para el área abdominal se realizó también una prueba para la búsqueda de dos tumores, diseñándose diversas interacciones en el recorrido espacial del objeto 3D generado, usando pantallas con despliegues de los cortes tomados de imágenes de tomografía computarizada. Posterior al desarrollo de las tres pruebas se realizó un proceso de medición de inmersión a partir del uso de un cuestionario. Resultados: El 100% de los usuarios encontró altamente interesante la aplicación, en tanto que el 90% expreso que intento fijar su foco de atención en el desarrollo exitoso de la prueba, indicador del nivel de absorción de la aplicación. también el 70% de los usuarios describió su experiencia como de alto nivel de inmersión. Conclusiones: Las pruebas demostraron que el prototipo es usable, absorbente y con un nivel de inmersión aceptable.
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Leon, Piera, Roberta Rivellini, Fabiola Giudici, Antonio Sciuto, Felice Pirozzi, and Francesco Corcione. "3D Vision Provides Shorter Operative Time and More Accurate Intraoperative Surgical Performance in Laparoscopic Hiatal Hernia Repair Compared With 2D Vision." Surgical Innovation 24, no. 2 (January 24, 2017): 155–61. http://dx.doi.org/10.1177/1553350616687434.
Повний текст джерелаАнотація:
Background. The aim of this study is to evaluate if 3-dimensional high-definition (3D) vision in laparoscopy can prompt advantages over conventional 2D high-definition vision in hiatal hernia (HH) repair. Study design. Between September 2012 and September 2015, we randomized 36 patients affected by symptomatic HH to undergo surgery; 17 patients underwent 2D laparoscopic HH repair, whereas 19 patients underwent the same operation in 3D vision. Results. No conversion to open surgery occurred. Overall operative time was significantly reduced in the 3D laparoscopic group compared with the 2D one (69.9 vs 90.1 minutes, P = .006). Operative time to perform laparoscopic crura closure did not differ significantly between the 2 groups. We observed a tendency to a faster crura closure in the 3D group in the subgroup of patients with mesh positioning (7.5 vs 8.9 minutes, P = .09). Nissen fundoplication was faster in the 3D group without mesh positioning ( P = .07). Conclusions. 3D vision in laparoscopic HH repair helps surgeon’s visualization and seems to lead to operative time reduction. Advantages can result from the enhanced spatial perception of narrow spaces. Less operative time and more accurate surgery translate to benefit for patients and cost savings, compensating the high costs of the 3D technology. However, more data from larger series are needed to firmly assess the advantages of 3D over 2D vision in laparoscopic HH repair.
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Mo, Wenkui, and Cansong Zhao. "Intelligent Algorithm-Based Magnetic Resonance Imaging in Radical Gastrectomy under Laparoscope." Contrast Media & Molecular Imaging 2021 (September 14, 2021): 1–8. http://dx.doi.org/10.1155/2021/1701447.
Повний текст джерелаАнотація:
The study focused on the influence of intelligent algorithm-based magnetic resonance imaging (MRI) on short-term curative effects of laparoscopic radical gastrectomy for gastric cancer. A convolutional neural network- (CNN-) based algorithm was used to segment MRI images of patients with gastric cancer, and 158 subjects admitted at hospital were selected as research subjects and randomly divided into the 3D laparoscopy group and 2D laparoscopy group, with 79 cases in each group. The two groups were compared for operation time, intraoperative blood loss, number of dissected lymph nodes, exhaust time, time to get out of bed, postoperative hospital stay, and postoperative complications. The results showed that the CNN-based algorithm had high accuracy with clear contours. The similarity coefficient (DSC) was 0.89, the sensitivity was 0.93, and the average time to process an image was 1.1 min. The 3D laparoscopic group had shorter operation time (86.3 ± 21.0 min vs. 98 ± 23.3 min) and less intraoperative blood loss (200 ± 27.6 mL vs. 209 ± 29.8 mL) than the 2D laparoscopic group, and the difference was statistically significant ( P < 0.05 ). The number of dissected lymph nodes was 38.4 ± 8.5 in the 3D group and 36.1 ± 6.0 in the 2D group, showing no statistically significant difference ( P > 0.05 ). At the same time, no statistically significant difference was noted in postoperative exhaust time, time to get out of bed, postoperative hospital stay, and the incidence of complications ( P > 0.05 ). It was concluded that the algorithm in this study can accurately segment the target area, providing a basis for the preoperative examination of gastric cancer, and that 3D laparoscopic surgery can shorten the operation time and reduce intraoperative bleeding, while achieving similar short-term curative effects to 2D laparoscopy.
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Kowalczyk, Dariusz, Szymon Piątkowski, Maja Porażko, Aleksandra Woskowska, Klaudia Szewczyk, Katarzyna Brudniak, Mariusz Wójtowicz, and Karolina Kowalczyk. "Safety of Three-Dimensional versus Two-Dimensional Laparoscopic Hysterectomy during the COVID-19 Pandemic." International Journal of Environmental Research and Public Health 19, no. 21 (October 29, 2022): 14163. http://dx.doi.org/10.3390/ijerph192114163.
Повний текст джерелаАнотація:
Background: The COVID-19 pandemic has resulted in a significant decrease in the number of surgical procedures performed. Therefore, it is important to use surgical methods that carry the lowest possible risk of virus transmission between the patient and the operating theater staff. Aim: Safety evaluation of three-dimensional (3D) versus two-dimensional (2D) laparoscopic hysterectomy during the COVID-19 pandemic. Methods: 44 patients were assigned to a prospective case-control study. They were divided either to 3D (n = 22) or 2D laparoscopic hysterectomy (n = 22). Fourteen laparoscopic supracervical hysterectomies (LASH) and eight total laparoscopic hysterectomies (TLH) were performed in every group. The demographic data, operating time, change in patients’ hemoglobin level and other surgical outcomes were evaluated. Results: 3D laparoscopy was associated with a significantly shorter operating time than 2D. (3D vs. 2D LASH 70 ± 23 min vs. 90 ± 20 min, p = 0.0086; 3D vs. 2D TLH 72 ± 9 min vs. 85 ± 9 min, p = 0.0089). The 3D and 2D groups were not significantly different in terms of change in serum hemoglobin level and other surgical outcomes. Conclusions: Due to a shorter operating time, 3D laparoscopic hysterectomy seems to be a safer method both for both the surgeon and the patient. Regarding terms of possible virus transmission, it may be particularly considered the first-choice method during the COVID-19 pandemic.
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Benelli, Andrea, Virginia Varca, Alchiede Simonato, Carlo Terrone, and Andrea Gregori. "Pentafecta Rates of Three-Dimensional Laparoscopic Radical Prostatectomy: Our Experience after 150 Cases." Urologia Journal 84, no. 2 (April 2017): 93–97. http://dx.doi.org/10.5301/uj.5000239.
Повний текст джерелаАнотація:
Introduction Three-dimensional (3D) laparoscopy with a flexible camera was developed to overcome the main limitation of traditional laparoscopic surgery, which is two-dimensional (2D) vision. The aim of our article is to present the largest casistic of 3D laparoscopic radical prostatectomy (LRP) available in literature and evaluate our results in terms of pentafecta and compare it with the literature. Methods We retrospectively evaluated consecutive patients who underwent LRP with 3D technology between March 2014 and December 2015. Total operative time (TOT), anasthomosis time (AT), blood loss and complications were registered. All patients presented at least 3 months of follow-up. Surgical outcome was evaluated in terms of Pentafecta. Results One hundred fifty consecutive patients underwent 3D LRP. Mean follow-up was 16.9 months. Mean age was 67.7 ± 8.3 years (range 50-76). Mean preoperative PSA value was 8.3 ± 5.8 ng/ml and mean bioptic Gleason Score (GS) was 6.6. We had a mean TOT of 158 ± 23 minutes and a mean AT of 25 ± 12.6. Mean blood loss was 240 ± 40 ml. Eighteen (12%) postoperative complications occurred. Pathologic results: pT2 in 91 patients (58%) and pT3 in 59 (39.3%). Pentafecta was reached by 31.3% of patients at 3 months and 51.6% at 12 months. Conclusions Our oncological and functional results are comparable to those present in literature for laparoscopic and robotic surgery. We believe that our findings can encourage the use of 3D laparoscopy especially considering the increasing attention to healthcare costs.
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Chen, Lin, Jiyang Li, Xin Guo, Hongqing Xi, Yunhe Gao, Jianxin Cui, Zhi Qiao, et al. "Surgical outcomes and learning curve analysis of robotic gastrectomy for gastric cancer: multidimensional analysis in a comparison with 3D laparoscopic gastrectomy." Journal of Clinical Oncology 36, no. 4_suppl (February 1, 2018): 162. http://dx.doi.org/10.1200/jco.2018.36.4_suppl.162.
Повний текст джерелаАнотація:
162 Background: There is a lack of supporting evidence regarding the safety, efficacy and surgeon acceptance of robotic versus three-dimensional (3D) laparoscopic surgery for patients with gastric cancer (GC). Methods: An ambispective cohort study was conducted. We compared short-term surgical outcomes including financial cost between robotic and 3D laparoscopic gastrectomy for all GC patients and the GC patients treated by Prof. Chen’s team. The Cumulative Sum (CUSUM) method was developed and used to analyze the learning curves of robotic and 3D laparoscopic gastrectomy performed by Prof. Chen. Results: From August 2011 to June 2017, a total of 517 patients were enrolled for treatment with either robotic (n=408 including n=73 performed by Prof. Chen) or 3D laparoscopic (n=109 including n=71 performed by Prof. Chen) gastrectomy. There were no significant differences between the two operation methods regarding the clinical pathological characteristics, except for smoking habit (p < 0.001). In analysis of all the 517 patients, robotic group had shorter operative time (208 min vs 228 min, p=0.004), less time to first flatus (3 days vs 4 days, p=0.025), longer time to remove drainage and nasogastric tube (12 days vs 9 days, p=0.001, 6 days vs. 4 days, p=0.001, respectively), and more postoperative complications (21.3% vs. 9.2%, p=0.003). While we compared these short-term outcomes of robotic and 3D laparoscopic gastrectomy performed by Prof. Chen, only number of lymph node dissections (robotic 27 vs. 3D 33, p=0.038) and time to remove nasogastric tube (robotic 5 days vs. 3D 3 days, p < 0.001) were significantly different. CUSUM analysis showed that operative time reached a stable state after around 21 cases in robotic gastrectomy and 19 cases in 3D laparoscopic gastrectomy. The cost-effectiveness analysis showed that robotic gastrectomy had significantly higher total cost than 3D laparoscopic gastrectomy (robotic = RMB 124907 vs. 3D-laparoscopic = RMB 94395; p < 0.001). Conclusions: With comparable surgical outcomes, higher surgeon acceptance and less financial cost, 3D laparoscope is a highly recommended minimal invasive surgical method for GC patients.
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Minaev, Sergey V., Igor N. Gerasimenko, Nikolay I. Bykov, Alina N. Grigorova, Sergey I. Timofeev, Fedor V. Doronin, Maria F. Rubanova, and Artem E. Mischvelov. "Efficiency of 3D imaging in children with abdominal echinococcosis." Russian Journal of Pediatric Surgery, Anesthesia and Intensive Care 11, no. 4 (December 18, 2021): 455–62. http://dx.doi.org/10.17816/psaic987.
Повний текст джерелаАнотація:
BACKGROUND: Laparoscopy in the treatment of abdominal echinococcosis is accompanied by complications. Therefore, studies on optimizing surgical approaches that reduce intra- and postoperative complications in liver echinococcosis are extremely relevant.
AIM: This study aimed to assess the possibility of using three-dimensional (3D) technologies in children with abdominal echinococcosis to determine whether it can increase the efficiency of laparoscopic treatment and reduce complications.
MATERIALS AND METHODS: A prospective analysis was conducted from 2013 to 2019 among 43 children with isolated liver echinococcosis who underwent multiport laparoscopic echinococcectomy. In the preoperative period, 25 patients from the main group used a complex of modern 3D technology: creating a 3D reconstruction of a liver with a parasitic cyst and then printing a 3D model of an organ with vessels and bile ducts.
RESULTS: The use of virtual computer visualization with the 3D reconstruction of the parasitic cyst and adjacent blood vessels with bile ducts made it possible to produce a 3D liver model. This approach provided the possibility of personalized laparoscopic access and precision in performing surgeries. Postoperatively, residual cavity (n = 1, 4.0%) was observed in the main group and biliary fistula and residual cavity (n = 2, 11.1%) in the comparison group
CONCLUSIONS: Thus, the use of 3D technologies in children with abdominal echinococcosis can increase the efficiency of laparoscopic treatment and reduce the number of early and late complications.
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Begum, Farhana, Md Jahangir Hossan Bhuiyan, and Md Jamshad Ali. "Laparoscopic Management of Benign Adnexal Masses." Journal of Bangladesh College of Physicians and Surgeons 40, no. 2 (April 10, 2022): 111–15. http://dx.doi.org/10.3329/jbcps.v40i2.58693.
Повний текст джерелаАнотація:
Introduction: Laparoscopy has now become the gold standard method for management of a wide range of gynecological ailments including adnexal masses. Laparoscopic surgery has been associated with shorter operating time, shorter duration of hospital-stay, early recovery and significant patient satisfaction. Using most modern image system like 3D-4K & advanced bipolar system like Ligasure, handling difficult procedure becomes easier & operating time becomes further shorter. The present study is conducted to evaluate the effectiveness & safety of laparoscopy in the management of adnexal masses & to find out the superiority of 3D-4K image technology over 2D-4K regarding operating time & handling difficult procedures. Method: The study period was of 36 months, from January 2017to December2019 in a laparoscopy surgery based private hospital, Cumilla, Bangladesh. During this period, 42 patients underwent laparoscopy for various benign adnexal masses. Cases were critically analyzed & Results are presented. Results: Most of the patients were from the age group of 20 to 30 years. Most common indication was serous cyst adenoma (48%). Most common surgical procedure performed was ovarian cystectomy (43%). Average operating time was less in 3D-4K image technology than 2D-4K. Conversion rate was nil in this study. No major complication observed. Minor port site infection found only in 2 cases. Conclusion: Laparoscopic surgery reduces hospital stay, there is less adverse effect, early recovery and better quality of life on surgical treatment of benign adnexal masses. J Bangladesh Coll Phys Surg 2022; 40: 111-115
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Svenner, Fan, Forsman, Shabo, Hallbeck, and Kjellman. "A Simulator-based Comparison of a Novel 3D and a Conventional 3D Vision System-surgical Performance and Subjective Ratings." Inventions 4, no. 4 (September 27, 2019): 58. http://dx.doi.org/10.3390/inventions4040058.
Повний текст джерелаАнотація:
In laparoscopy, novel three-dimensional laparoscopic vision systems (3D LVS) without glasses (3D−) have been invented. While standard 3D LVS with glasses (3D+) have shown advantages over original two-dimensional systems, quantitative comparisons of surgical performance between 3D− and 3D+ systems are still lacking. The aim is to compare the systems in simulated robotic surgery tasks. In a crossover study, 18 medical students performed four basic laparoscopic tasks in the validated Simball Box simulator with authentic surgical instruments by using the 3D+ and 3D− systems. Performance was measured by the number of errors and the task’s duration. Subjective ratings of perceptions and preference were assessed after each test. There were significant, but still minor, advantages for the conventional 3D+ system regarding spatial orientation and sense of depth. Overall, ten and eight subjects preferred 3D+ and 3D− systems, respectively. No significant differences were found in performance, post-operative physicals or eye symptoms. The novel 3D− system was similar to the conventional 3D+ system regarding performance and overall preference, while there were minor advantages for the 3D+ system in the subjective ratings. Since the 3D− system is a new invention, it should have a higher potential of usability improvements.
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Restaino, S., V. Vargiu, A. Rosati, M. Bruno, G. Dinoi, E. Cola, R. Moroni, G. Scambia, and F. Fanfani. "4K versus 3D total laparoscopic hysterectomy by resident in training: a prospective randomised trial." Facts, Views and Vision in ObGyn 13, no. 3 (June 2021): 223–31. http://dx.doi.org/10.52054/fvvo.13.3.027.
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Background: The introduction of ultra-high-definition laparoscopic cameras (4K), by providing stronger monocular depth perception, could challenge the existing 3D technology. There are few available studies on this topic, especially in gynaecological setting. Objectives: Prospective, single institution, randomised clinical trial (NCT04209036). Materials and Methods: The two laparoscopes utilised were the 0°ULTRA Telescopes with 4K technology and the 0°3D-HD by Olympus. The surgeons were all trainees and in their last year of residency and who had obtained the certificate of first or second level of the Gynaecological Endoscopic Surgical Education and Assessment program - GESEA program. Twenty-nine patients with benign uterine pathology were enrolled. Main outcome measures: To compare if the use three-dimensional (3D) versus ultra-high-definition laparoscopic vision system (4K) for total laparoscopic hysterectomy performed by trainees was associated with a shorter operative time. Results: The 3D vision system did not prove to be superior to the 4K vision system. Operators reported significantly more vision-related side effects when using 3D than 4K. Completing the GESEA training program was the only factor with a positive and statistically significant impact on the overall time of the procedure, especially when greater dexterity and tissue handling were required. Conclusions: Neither technology used proved superior to the other, although operators showed a preference for 4K over 3D due to the lower number of visual side effects. Attendance at courses on laparoscopic simulators and training programs allowed trainees to demonstrate excellent surgical skills.
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Österberg, Johanna, Arestis Sokratous, Konstantinos Georgiou, and Lars Enochsson. "Can 3D Vision Improve Laparoscopic Performance in Box Simulation Training when Compared to Conventional 2D Vision?" Folia Medica 61, no. 4 (December 31, 2019): 491–99. http://dx.doi.org/10.3897/folmed.61.e47958.
Повний текст джерелаАнотація:
Introduction: Three-dimensional (3D) imaging systems have been introduced in laparoscopic surgery to facilitate binocular vision and dexterity to improve surgical performance and safety. Several studies have shown the benefits of 3D imaging in laparoscopy, but until now only a few studies have assessed the outcome by using objective variables. Box trainers are affordable alternatives to virtual laparoscopic surgical training, and the possibility of using real surgical instruments makes them more realistic to use. However, the data and feedback by a virtual simulator have not, until now, been able to assess. Simball Box®, equipped with G-coder sensors®, registers the instrument movements during training and gives the same feedback like a virtual simulator.Aim: The aim of this study was to objectively evaluate the laparoscopic performance in 3D compared to conventional 2D vision by using a box simulation trainer.Materials and methods: Thirty surgeons, residents and consultants, participated in the study. Eighteen had no, or minimal, laparoscopic experience (novices) whereas 12 were experts. They all performed three standard box training exercises (rope race, precision cutting, and basic suturing) in Simball Box. The participants were randomized and started with either 3D HD or traditional 2D HD cameras. The exercises were instructed and supervised. All instrument movements were registered. Variations in time, linear distance, average speed, and motion smoothness were analyzed.Results: The parameters time, distance, speed, and motion smoothness were significantly better when the 3D camera was used.Conclusion: All individuals of both subgroups achieved significantly higher speed and better motion smoothness when using 3D.
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Puppo, A., E. Olearo, and M. Ceccaroni. "Surgical technique for laparoscopic removal of bulky para-aortic nodes without repositioning surgical field during laparoscopic debulking for advanced ovarian cancer." Facts, Views and Vision in ObGyn 14, no. 2 (June 30, 2022): 189–91. http://dx.doi.org/10.52054/fvvo.14.2.029.
Повний текст джерелаАнотація:
Background: In the last years, laparoscopy has been progressively introduced in the management of advanced- stage ovarian cancer (AOC) not only to evaluate tumour resectability, but also to perform primary or interval minimally invasive debulking surgery in selected patients. During laparoscopic debulking for AOC, the need to change the surgical field to treat disease in the upper abdomen can be a time-consuming procedure. Objective: To demonstrate feasibility, safety and effectiveness of laparoscopic approach to remove bulky para- aortic nodes in AOC with a 30-degree 3D-endoscope without repositioning the laparoscopic surgical field. Materials and Methods: A 51-year-old woman was referred to our centre due to AOC with bulky para-aortic nodes (7 cm polylobate mass at CT-scan). The narrated surgical video article demonstrates the surgical steps for laparoscopic removal of bulky para-aortic nodes with a 30-degree 3D-endoscope, maintaining the vision from the upper abdomen perpendicular to the main axis of the vascular structures for the whole duration of the surgery (“top-bottom” view), without repositioning surgical field. Main outcomes measured: Complete laparoscopic excision of disease was achieved. Results: Post-operative course was uneventful. Patient recovered from surgery and was able to start adjuvant chemotherapy within 30 days from surgery. Conclusions: Repositioning the surgical field to perform para-aortic dissection can be a time-consuming procedure during laparoscopic debulking for ovarian cancer. Laparoscopic removal of bulky para-aortic nodes with a 30-degree 3D-endoscope and “top-bottom view” is feasible, safe and effective
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Deenadayal, M., V. Günther, I. Alkatout, D. Freytag, A. Deenadayal-Mettler, A. Deenadayal Tolani, R. Sinha, and L. Mettler. "Critical Role of 3D ultrasound in the diagnosis and management of Robert’s uterus: a single-centre case series and a review." Facts, Views and Vision in ObGyn 13, no. 1 (March 31, 2021): 41–49. http://dx.doi.org/10.52054/fvvo.13.1.008.
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A septate uterus with a non-communicating hemicavity was first described by Robert in 1969/70 as a specific malformation of the uterus. The condition is commonly associated with a blind uterine hemicavity, unilateral haematometra, a contralateral unicornuate uterine cavity and a normal external uterine fundus. The main symptoms are repetitive attacks of pain at four-weekly intervals around menarche, repeated dysmenorrhea, recurrent pregnancy loss and infertility. In this report, we review the disease, its diagnosis and treatment, and describe five cases of Robert’s uterus. Three dimensional (3D) ultrasound (US) imaging was performed by the transvaginal route in four cases. In the fifth case of a 13-year-old girl, we avoided the vaginal route and magnetic resonance imaging (MRI) and 3D transrectal US yielded the correct diagnosis. The following treatment procedures were undertaken: laparoscopic endometrectomy, hysteroscopic septum resection, laparoscopic uterine hemicavity resection and total laparoscopic hysterectomy (TLH). The diagnosis and optimum treatment of Robert’s uterus remains difficult for clinicians because of its rarity. A detailed and careful assessment by 3D US should be performed, followed by hysteroscopy in combination with laparoscopy, to confirm the diagnosis.
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Zaporozhan, V. M., and A. V. Malynovskyi. "Experience of application of 3D-visualization in laparoscopic operations." Klinicheskaia khirurgiia 87, no. 1-2 (May 26, 2020): 35–38. http://dx.doi.org/10.26779/2522-1396.2020.1-2.35.
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Objective. Studying of first results of application of 3D visualization in various laparoscopic interventions.
Materials and methods. There were performed 169 operations: 27 transabdominal preperitoneal plasties of inguinal hernias, 19 intraperitoneal alloplasties of umbilical and postoperative ventral hernias with suturing of hernia defect, 1 retromuscular alloplasty of umbilical hernia, 6 reconstructions of anterior abdominal wall for dyastasis of rectal abdominal muscles, 103 plasties of hiatal hernias with fundoplications, 7 Heller’s cardiomyotomies and Dor’s fundoplication, 1 subtotal, 3 atypical gastric resections and 2 sleeve gastric resections for obesity.
Results. 3D laparoscopy have simplified and accelerated the parietal peritoneum suturing in conduction of transabdominal preperitoneal plasties of inguinal hernias, as well as while performance of intraperitoneal alloplasties of umbilical and postoperative ventral hernias – the hernia defect suturing. While doing the hiatal hernia plasty, fundoplication with crurorrhaphy 3D laparoscopy have provided the additional advantages of manipulations improvement in special anatomic zones. Analogous advantages were shown in gastric operations, using 3D visualization. Intra- and postoperative complications were absent, as well as the hernias recurrence in the 6 mo-1.5 yr follow-up.
Conclusion. The 3D visualization guarantees a rapid and highly-precision performance of complex manipulations in technically hard anatomical zones. Further accumulation of the material and comparison of results of 3D and 2D laparoscopy in prospective investigations, using objective parameters, as well as studying of expediency for 3D visualization selective application, for instance while performance of the most complicated operative stages are necessary.
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Monnet, Eric, and Ahmed Hafez. "Description of the technique for laparoscopic radical prostatectomy in canine cadavers: 2D vs. 3D camera." PLOS ONE 17, no. 11 (November 29, 2022): e0274868. http://dx.doi.org/10.1371/journal.pone.0274868.
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Objective To describe the technique of laparoscopic radical prostatectomy in canine cadavers. Study design Cadaveric study. Animals 8 canine cadavers. Methods Specimens were randomly divided into a 2D or 3D group. The vesicourethral anastomosis (VUA) was performed with 5 mm laparoscopic needle holders. A unidirectional barbed suture was used to complete the VUA with two simple continuous suture patterns. The number of stitches placed, the patency of the anastomosis, and the distance between the VUA and the ureters were recorded. Results Four dogs were entered into each group. The prostatectomy was completed in each dog following the same technique. VUA were completed with nine stitches (range: 8–10 stitches) for the 2D group and ten stitches (range: 9–11 stitches) for the 3D group (p<0.176). All the stitches were placed full thickness. The VUA was patent in each case. The left ureter was 1.05 cm (range: 0.5 to 1.1cm) from the VUA in the 2D group and 1.8 cm (range: 1.3–1.8 cm) for the 3D group (p< 0.025). The right ureter was 1.5 cm (range: 1 to 2 cm) from the VUA in the 2D group and 1.75 cm (range: 1.3–2 cm) for the 3D group (p< 0.55). Conclusion Laparoscopic radical prostatectomy can be performed with a 2D or a 3D camera in canine cadavers. The 3D camera results in more accurate placement of the sutures since they were placed further away from the left ureter. Clinical significance Radical prostatectomy with laparoscopy should be considered for dogs.
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di Mauro, Roxana, Martina Andellini, Francesco Faggiano, Pietro Derrico, and Matteo Ritrovato. "OP44 HTA Of 3D Videolaparoscopy: Follow-up 12 Months After Introduction." International Journal of Technology Assessment in Health Care 34, S1 (2018): 17. http://dx.doi.org/10.1017/s0266462318000971.
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Introduction:In 2016, a health technology assessment (HTA) was conducted to gather evidence on the safety and overall effectiveness of performing laparoscopic surgery by using 3D videolaparoscopy (3DVL) versus 2D videolaparoscopy (2DVL) display systems in a variety of pediatric surgical procedures in order to efficiently support the final investment decision on video system to be acquired. Results showed that 3DVL might be a good alternative to 2DVL. Moreover, sensitivity analysis has also confirmed that the results associated to the best technology (3DVL) are robust; this has led to a confident decision for recommending it in Bambino Gesù Children's Hospital (OPBG). The objective of this work is to evaluate the impact of 3DVL within the hospital setting after 12 months its introduction in clinical practice.Methods:After 12 months since the technology's introduction, clinical data, identified in previous HTA study, were extracted from surgery registries; data concerning the number of surgeries, duration of intervention, blood loss and surgery complications were analyzed. Statistical analyses on these data, between pre and post 3D system implementation period were carried out.Results:Results confirmed the 2016 HTA results, highlighting clinical advantages identified a priori. The percentage of the number of laparoscopic procedures significantly increased from 12 percent in pre-3D system installation period to the 20 percent in post 3D system installation (p=7,35E-6). No statistical differences in length of hospital stay, operative time, incidence of perioperative blood loss and surgery complication, between pre- and post- 3D installation period were identified.Conclusions:This study highlighted the importance of a HTA process before the acquisition of a technology for which the investment decision is not obvious, because benefits and drawbacks of the new technology are unclear. Preliminary results showed that 3D video laparoscopy system seems to be better than the 2D laparoscopy system. However, more data has to be examined to be able to establish the final judgement.
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Bhuiyan, Md Jahangir Hossan, Farhana Begum, and Mohammad Anwar Hossain. "Laparoscopic Hand-Sewn Duodenojejunostomy for Superior Mesenteric Artery Syndrome Using 3D-4K Image - A Case Study." Journal of Bangladesh College of Physicians and Surgeons 40, no. 1 (January 3, 2022): 68–71. http://dx.doi.org/10.3329/jbcps.v40i1.57062.
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Background: Superior mesenteric artery (SMA) syndrome, also known as wilkie’s syndrome, is a rare condition characterized by vascular compression of third part of the duodenum that leads to duodenal obstruction. Traditionally, open or laparoscopic stapled duodenojejunostomy is recommended when conservative management failed. We report a 3D-4K image hand-sewn duodenojejunostomy (DJ) for the treatment of SMA syndrome. Materials and Methods: A 13 years old patient presented with anorexia, post prandial vomiting, dull abdominal pain & weight loss for 6 years. Upper GI endoscopy revealed duodenal stenosis and Barium follow through demonstrated obstruction to the third part of the duodenum. Ultrasound examination revealed gastric & duodenal dilatation. With these clinical and radiological findings, the diagnosis of SMA syndrome was suspected. He was identified as a candidate for a duodenojejunostomy. 3D-4K image system was used for superior image quality and binocular depth perception and a laparoscopic hand-sewn duodenojejunostomy performed on september 20, 2020 Results: Diagnostic laparoscopy detected SMA syndrome. Laparoscopic hand-sewn duodenojejunostomy took 120 minutes time. There were no intraoperative complications. The blood loss was minimum. The postoperative course was uneventful with resolution of duodenal obstruction. The patient discharged on 6th postoperative day. He gained 10 kg weight 6weeks after surgery. Conclusion: 3D-4K image laparoscopic hand-sewn duodenojejunostomy as a surgical option for the treatment of SMA syndrome is safe, cost effective, feasible, and valid alternative to open and laparoscopic stapled technique with added benefits of a minimally invasive approach. Additionally hand-sewn anastomosis ensures good tissue approximation. Of course it is time consuming and needs expertise in intracorporeal suturing. 3D-4K image technology makes this difficult procedure easier. J Bangladesh Coll Phys Surg 2022; 40: 68-71
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Malinovsky, A. V., and S. Y. Badion. "THE FIRST RESULTS OF LAPAROSCOPIC INTRAPERITONEAL ALLOPLASTY OF UMBILICAL AND POSTOPERATIVE VENTRAL HERNIAS WITH CLOSURE OF THE HERNIAL DEFECT USING 3D LAPAROSCOPY." Kharkiv Surgical School, no. 5-6 (December 25, 2019): 56–58. http://dx.doi.org/10.37699/2308-7005.5-6.2019.11.
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Abstract. The aim of the study was to analyze the first results of laparoscopic alloplasty of the umbilical and postoperative ventral hernias with suturing the hernial defect using 3D laparoscopy. During the period from September 2018 to April 2019, we performed 12 intraperitoneal alloplastic umbilical and postoperative hernias of medium and large sizes. The main group consisted of 7 patients who underwent intraperitoneal alloplasty with closure of the hernial defect and sac. 3D laparoscopy was used in some patients, (Epic HD system, Richard Wolf). The control group consisted of 5 patients who underwent intraperitoneal alloplasty without suturing the hernial defect and sac.
Seromes in the main group were in 3 cases, the average volume was 2 ml (from 0.5 to 3 ml), in the control group seromes were also in 3 cases, the average volume was 2.8 ml (from 1 to 5.5 ml). The immediate results, tracked from 1 to 6 months, showed no recurrence in both groups.
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Andras, Iulia, Angelo Territo, Teodora Telecan, Paul Medan, Ion Perciuleac, Alexandru Berindean, Dan V. Stanca, Maximilian Buzoianu, Ioan Coman, and Nicolae Crisan. "Role of the Laparoscopic Approach for Complex Urologic Surgery in the Era of Robotics." Journal of Clinical Medicine 10, no. 9 (April 21, 2021): 1812. http://dx.doi.org/10.3390/jcm10091812.
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(1) Introduction: The advent of robotic surgery led to the assumption that laparoscopic surgery would be replaced entirely. However, the high costs of robotic surgery limit its availability. The aim of the current study was to assess the feasibility of the 3D laparoscopic approach for the most complex urological procedures. (2) Materials and methods: We included in the current study all patients who had undergone complex 3D laparoscopic procedures in our department since January 2017, including radical nephrectomy (LRN) using a dual combined approach (19 patients), radical nephroureterectomy (LRNU) with bladder cuff excision (13 patients), and radical cystectomy (LRC) with intracorporeal urinary diversion (ICUD) (21 patients). (3) Results: The mean operative time was 345/230/478 min, the complications rate was 26%/30.76%/23.8% and positive surgical margins were encountered in 3/1/1 patients for the combined approach of LRN/LRNU/LRC with ICUD, respectively. A single patient was converted to open surgery during LRN due to extension of the vena cava thrombus above the hepatic veins. After LRC, sepsis was the most common complication and 8 patients were readmitted at a mean of 15.5 days after discharge. (4) Conclusions: In the era of robotic surgery, laparoscopy remains a plausible alternative for most complex oncological cases.
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Coronado Martín, P. J., M. Gracia, M. Ramirez Mena, M. Bellón del Amo, J. García-Santos, and M. Fasero Laiz. "The well-being of the gynecological surgeon improves with the robot-assisted surgery." ANALES RANM 139, no. 139(03) (2023): 294–302. http://dx.doi.org/10.32440/ar.2022.139.03.rev10.
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Objectives: To demonstrate that robotic surgery benefits the ergonomics of the surgeon and his assistant compared to conventional laparoscopy through an ergonomics and satisfaction survey. Methods: Cross-sectional observational study of consecutive gynecological surgeries, which involve at least one hysterectomy, performed with robotic assistance (Da Vinci System) or with conventional laparoscopy at the Hospital Clínico San Carlos during the years 2008 and 2021. A questionnaire was administered to the main surgeon and the assistant in order to know their subjective impressions regarding comfort, ergonomics, and satisfaction with the da Vinci robotic system or laparoscopy. The responses were collected using a visual analog scale that scored from 1 (worst condition) to 10 (best condition). The comparison of the variables was made using the Student’s t test or the Mann-Whitney U test for independent samples. Significance was considered with a value of p<0.05. Results: A complete response to the questionnaire was obtained in 384 out of 451 cases (242 robotic and 142 laparoscopic). With equal difficulty perceived by the main surgeon, robotic surgery was rated as less tiring, more comfortable, and with less limb and back pain than laparoscopic surgery (p<0.001). The surgeon considered that the 3D vision, the articulation of the instrument and the ergonomics offered by robotics were relevant, as well as that robotics, was an advance over laparoscopy and open surgery regardless of the level of experience or the complexity of the procedure. No differences were found between robotic and laparoscopic surgery in the assistant assessment, except when the assistant was a senior surgeon, who found a better degree of comfort and less limb pain in the robotic approach (p<0.05). Conclusions: Robotic surgery has clear advantages for the surgeon, since it increases the degree of satisfaction and comfort, reducing fatigue and discomfort due to the position compared to conventional laparoscopy regardless surgeon’s experience and complexity of the intervention.
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White, Eoin, Muireann McMahon, Michael Walsh, J. Calvin Coffey, and Leonard O’Sullivan. "Creating Biofidelic Phantom Anatomies of the Colorectal Region for Innovations in Colorectal Surgery." Proceedings of the International Symposium on Human Factors and Ergonomics in Health Care 3, no. 1 (June 2014): 277–82. http://dx.doi.org/10.1177/2327857914031045.
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The aim of this research was to develop a replicated colorectal region for use in laparoscopic instrument innovation.Testing of both surgical skills and laparoscopic surgical instruments takes place in a controlled lab setting. Cadaverous tissue or laparoscopic simulators are the tools of choice for skill testing.However, in the instance of colorectal surgery, porcine intestines remain the gold standard for laparoscopic testing(Lamata et al. 2004). There exists data in current literature which discuss the use of anatomical simulators (also known as simulator boxes) for both researching surgical methods, and testing laparoscopic instruments. There is little focus in the literature on the materials used to create surrogate environments which mimic those of the real world. Simulator boxes exist, and are of high fidelity, but can be quite cumbersome, with some being left in storage areas indefinitely, with some remaining inaccessible for many centers around the world. There are also many peripheral devices which need to accompany these simulators, such as laparoscopes and external monitoring equipment for recording and review. As they are highly specialized pieces of research equipment, in the majority of cases, they are not designed to be portable or readily reconfigurable. These limitations make high end laparoscopic simulators inappropriate choices for early stage HFE (Human Factors Engineering) studies.The authors propose the creation of a laparoscopic simulator which contains anatomically accurate, 3D printed colorectal sections for use in both surgical training and instrument innovation. The colon is modeled from high quality CT data in DICOM format, using the Material Mimics Innovation Suite (Materialise, 2013). By creating virtual models of the internal anatomical structure of the colorectal region, it allows for a more accurate depiction of the anatomy encountered in a surgical setting. A maximum level of realism is required for a simulator to be effective(Lamata et al. 2004).The future application of this work lies in the validation of the 3D printed anatomy which will lead to innovation of new instruments or approaches to laparoscopic surgery.
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Abou-Haidar, Hiba, Talal Al-Qaoud, Roman Jednak, Alex Brzezinski, Mohamed El-Sherbiny, and John-Paul Capolicchio. "Laparoscopic pyeloplasty: Initial experience with 3D vision laparoscopy and articulating shears." Journal of Pediatric Urology 12, no. 6 (December 2016): 426.e1–426.e5. http://dx.doi.org/10.1016/j.jpurol.2016.08.027.
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Kunert, Wolfgang, Thomas Auer, Pirmin Storz, Manuel Braun, Andreas Kirschniak, and Claudius Falch. "How Much Stereoscopic Effect Does Laparoscopy Need? Controlled, Prospective Randomized Trial on Surgical Task Efficiency in Standardized Phantom Tasks." Surgical Innovation 25, no. 5 (July 20, 2018): 515–24. http://dx.doi.org/10.1177/1553350618784801.
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Background. To regain 2-eyed vision in laparoscopy, dual-channeled optics have been introduced. With this optics design, the distance between the 2 front lenses defines how much stereoscopic effect is seen. This study quantifies the impact of an enhanced and a reduced stereo effect on surgical task efficiency. Methods. A prospective single-blinded study was performed with 20 laparoscopic novices in an inanimate experimental setting. A standard bichannelled stereo system was used to perform a suturing and knotting task. The working distance and the task size were scaled to vary the stereo effect and, thereby, simulate hypothetic stereo optics with enhanced and reduced optical bases. The task performances were timed, and the number of trials for stitching out was counted. The participants finally filled out a questionnaire to collect subjective impressions. Results. The increase of the stereo effect by 50% caused no objective improvement in laparoscopic knotting compared with typical 3D (control group with stereo basis of 4.5 mm). But ergonomic disadvantages (headache) were subjectively reported in 1 of 20 cases in the questionnaire. The reduction of the stereo effect by one-third led to a significantly longer average execution time. There was no significant dependence found between stereo effect and number of stich-out trials, stitching precision, or knotting quality. Conclusions. Considering laparoscopy, it does not seem advisable to enhance the stereo effect because of ergonomic problems. Otherwise, a miniaturization of the 3D scope (5 mm version) is problematic because its benefit mostly shrinks with the reduced stereo effect.
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Leshen, Michael, and Randy Richardson. "Bilateral Morgagni Hernia: A Unique Presentation of a Rare Pathology." Case Reports in Radiology 2016 (2016): 1–3. http://dx.doi.org/10.1155/2016/7505329.
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Morgagni hernia is an unusual congenital herniation of abdominal content through the triangular parasternal gaps of the anterior diaphragm. They are commonly asymptomatic and right-sided. We present a case of a bilateral Morgagni hernia resulting in delayed growth in a 10-month-old boy. The presentation was unique due to its bilateral nature and its symptomatic compression of the mediastinum. Diagnosis was made by 3D reconstructed CT angiogram. The patient underwent medical optimization until he was safely able to tolerate laparoscopic surgical repair of his hernia. Upon laparoscopy, the CT findings were confirmed and the hernia was repaired.
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Khitaryan, A. G., A. A. Golovina, S. A. Kovalev, N. A. Romodan, A. Z. Alibekov, I. A. Chepurnaya, and D. K. Shimchenko. "Are there any advantages of 3D laparoscopic technologies in surgery for rectocele and rectal prolapse?" Koloproktologia 20, no. 4 (December 21, 2021): 56–69. http://dx.doi.org/10.33878//2073-7556-2021-20-4-56-69.
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AIM: to assess results of 3D laparoscopic ventral mesh rectopexy versus traditional 2D laparoscopy for rectocele and rectal prolapse.PATIENTS AND METHODS: a prospective randomized study (NCT 04817150) included patients aged 18 to 70 years who underwent laparoscopic ventral mesh rectopexy for rectocele and/or rectal prolapse. The assessment included operation time, intraoperative blood loss, complications rate and their severity by Clavien-Dindo scale, the pain intensity by VAS, the volume of the fluid collection in the implant site 2–3 days and 2–3 weeks after the procedure. The surgeon’s comfort and ergonomics when using 3D systems was evaluated using POMS questionnaire. The late results were assessed by recurrence rate, functional results — by Cleveland Clinic Constipation scale score, Incontinence scale score, P-Qol, and PGII.RESULTS: the study included 29 patients of the main and 32 patients of the control group. The follow-up was 21 ± 20.3 months. One complication developed in the control group (p = 1.0). The operation time in the main group was 74.1 ± 14 minutes (87.1 ± 24.3 minutes in controls, p = 0.01). The intraoperative blood loss was 19.8 ± 9.6 ml in the main group (55 ± 39.2 ml in controls, p = 0.001). The pain intensity was significantly lower in the main group (18.0 vs 22.5 points, p = 0.03). The volume of fluid collection 2–3 after surgery mesh site was 21.2 ± 9.7 cm3 in the main group (30.7 ± 25.6 cm3 in the control group, p = 0.02). The POMS scale assessment for a surgeon in the main group was 56.4 ± 33.5 points (87.3 ± 30.8 points in the control group). A follow-up examination 12 months postop revealed no recurrence in both groups (p = 1.0). The main and the control group showed no significant differences in functional outcomes.CONCLUSIONS: the use of 3D laparoscopic ventral mesh rectopexy for rectocele and rectal prolapse is comparable in late results with traditional laparoscopic procedure. However, it takes less operation time, lower pain intensity, less intraoperative blood loss, smaller fluid collection at mesh site, better comfort and ergonomics for surgeon.
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Mir, Iqbal Saleem, Tajamul Rashid, Irfan Nazir Mir, Suhail Nazir, Imtiyaz Ali, and Mansoor Ul Haq. "Laparoscopic totally extraperitoneal repair of inguinal hernia using three-dimensional mesh: a 5 years experience at a tertiary care hospital in Kashmir, India." International Surgery Journal 5, no. 3 (February 26, 2018): 1016. http://dx.doi.org/10.18203/2349-2902.isj20180822.
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Background: Inguinal hernia repair by laparoscopy is gaining acceptance worldwide. A flat mesh used in laparoscopic inguinal hernia repair is associated with more complications especially early and late postoperative pain owing to the need of mechanical fixation of this mesh. A three-dimensional mesh in this context is an emerging alternative which needs no or minimal fixation.Methods: A retrospective study of 123 patients was carried out from July 2012 to August 2017. All patients who underwent TEP by a single surgical team using three-dimensional mesh were included in the study. Data collected was analysed retrospectively.Results: Out of a total of 123 patients, 114 patients had unilateral hernia and 9 had bilateral hernia. A total of 132 laparoscopic hernia repairs were done using three-dimensional mesh. All the patients were male aged 29 to 75 years with a mean age of 51.5 years. Indirect hernias were more common comprising of 87.7%. The mean operative time was 46.9 minutes. The average mesh fixation time was 12.6 minutes. No major intraoperative complications were noted in any of the patients. Three patients (2.45%) experienced severe postoperative pain. Most of the patients 117 (95.12%) were discharged within 24 hours of surgery. Mean hospital stay in our study was 1 day. The mean length of follow-up was 12 months. Mild persistent groin pain was found in four patients (3.25%). Seroma was noted in five patients (4.06%). Hematoma and wound infection was noted in none. One patient (0.81%) had recurrence after completion of follow up. We found use of 3D mesh costly.Conclusions: Laparoscopic inguinal mesh hernioplasty using 3D mesh is a viable alternative of hernioplasty with minimal post-operative pain and recurrence and using 3D mesh has a technical advantage of easy insertion in an anatomically correct position with minimal fixation.
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Cao, Jingqin, Defen Zhang, Yanxiao Yue, Yingchun Zhang, Huaizhuang Cai, Jie Zhang, Zuoxiang Wang, Doree Nwi, and Agnes Williams. "Therapeutic Images of CT Image Analysis Based on 3D Visualization Technology in Patients with Hepatobiliary Stones." Journal of Medical Imaging and Health Informatics 10, no. 9 (August 1, 2020): 2101–5. http://dx.doi.org/10.1166/jmihi.2020.3150.
Повний текст джерелаАнотація:
Objective: Paper for CT imaging in three-dimensional visualization technology for laparoscopy combined with biliary hard lens therapeutic clinical effect of extrahepatic bile duct stones were evaluated. Methods: Abdominal medical image 3D visualization software for our hospital CT imaging diagnosis and treatment of bile duct stones in 45 patients of bile duct stones three-dimensional visualization of clinical analysis and preoperative planning, and brought it into the operating room three-dimensional visualization model, guiding the implementation of the joint 3D laparoscopic biliary lithotripsy targeted hard lens. At the same time, as well as consistency with the actual hepatolithiasis distribution calculation operative 3D model visualization display; The operative time, bleeding, blood transfusion, stone clearance rate, morbidity and mortality perioperative after review stone recurrence rate was observed. Results: reproducing a three-dimensional patient model visualization liver, intrahepatic vascular anatomy of the liver bile duct stones distributed, real intraoperative and preoperative displayed three-dimensional visualization model consistent, pre-operative manner consistent with preoperative planning. Operation time (125.9±21.2) minutes, blood loss (38.8±8.5) ml, no massive hemorrhage and blood transfusion; MRCP examination by stone clearance rate was 100%; 2 biliary injury, bile leakage 1 complication the rate was 6.7%; There were no perioperative deaths. Stone recurrence two cases, the recurrence rate of 4.4%. Conclusion: The three-dimensional visualization techniques may be implemented hepatolithiasis accurate assessment of preoperative, intraoperative guidance of laparoscopic, endoscopic biliary hard gravel, stone liver resection operation, help to improve stone clearance rate, guarantee operation safety.
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Destro, Francesca, Noemi Cantone, and Mario Lima. "3D Laparoscopic Monitors." Medical Equipment Insights 5 (January 2014): MEI.S13342. http://dx.doi.org/10.4137/mei.s13342.
Повний текст джерелаАнотація:
Minimally invasive surgery (MIS) is a relatively new surgery comprising various procedures performed with special miniaturized instruments and imaging reproduction systems. Technological advances have made MIS an efficient, safe, and applicable tool for pediatric surgeons with unquestionable advantages. The recent introduction of three-dimensional (3D) high definition systems has been advocated in order to overcome some of the problems related to standard MIS visual limitations. This short paper recapitulates the necessity to minimize MIS visualization limitations and reports the characteristics of new laparoscopic 3D systems.
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Yu, Lingtao, Zhengyu Wang, Liqiang Sun, Wenjie Wang, Lan Wang, and Zhijiang Du. "A new forecasting kinematic algorithm of automatic navigation for a laparoscopic minimally invasive surgical robotic system." Robotica 35, no. 5 (February 11, 2016): 1192–222. http://dx.doi.org/10.1017/s0263574715001137.
Повний текст джерелаАнотація:
SUMMARYThis paper presents a novel forecasting kinematic algorithm for autonomously navigating the 3D visual window of laparoscopic minimally invasive surgical robotic system (LMISRS). By the application of the proposed technique, a constant distribution area ratio of the micro devices can be guaranteed in the visual window; real-time concurrency motion of the visual window of the laparoscope and the mark points of the instruments is realized, i.e. the visual window can keep tracking the movement of the marks automatically, so that the user does not have to switch between the master-slave controlling targets. The implementation of the new technique is summarized as follows: the robotic kinematics and space analytic geometry are thoroughly analyzed and modeled, and a “following kinematic algorithm” is proposed for the visual window of the laparoscope, which tracks the mark points of the instrument arms; a “forecasting kinematic algorithm” is established by using a combination of the “following kinematic algorithm”, the basic visual parameters of 3D visual field, the Verhulst Grey Model and the filtered amendment method. The proposed technique is verified by a series of simulations by using two groups of marks' motion trails with different sampling times, indicating that the technique is accurate, feasible and robust.
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Wang, Mo fei, and Dil Thapa. "Assessment of 2D and 3D imaging for patients undergoing laparoscopic bariatric surgery." Polish Journal of Surgery 94, no. 4 (March 15, 2022): 1–4. http://dx.doi.org/10.5604/01.3001.0015.7972.
Повний текст джерелаАнотація:
<b>Aim:</b> The aim of this study is to compare the association of 2D and 3D imagery with technical performance and operative time during laparoscopic surgery. </br></br> <b> Material and methods:</b> A systematic review of the literature was conducted through an online search in databases such as PubMed, Cochrane, Embase and CNKI in order to identify articles published in English and Chinese from 2010 to 2020 that compared the clinical results of 2D and 3D laparoscopic gastric bypass surgery. </br></br> <b> Results:</b> A total of 50 articles were included in the qualitative analysis. Out of these, 5 articles that met the inclusion criteria were selected for analysis, according to which 3D laparoscopic surgery had a shorter surgery time than 2D laparoscopic surgery. </br></br> <b>Conclusions:</b> Compared with a 2D laparoscopic system, a 3D laparoscopic system can significantly reduce the operative time and errors and can increase the comfort of the surgeons performing laparoscopic gastric bypass surgery.
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Noureldin, Yasser A., Ana Stoica, Pepa Kaneva, and Sero Andonian. "Impact of Training on Three-Dimensional versus Two-Dimensional Laparoscopic Systems on Acquisition of Laparoscopic Skills in Novices: A Prospective Comparative Pilot Study." BioMed Research International 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/4197693.
Повний текст джерелаАнотація:
In this prospective educational study, 10 medical students (novices) were randomized to practice two basic laparoscopic tasks from the MISTELS program, namely, Pegboard Transfer (PT) and Intracorporeal Knot Tying (IKT) tasks, using either a 2D or a 3D laparoscopic platform. There was no significant difference between both groups in the baseline assessments (PT task: 130.8 ± 18.7 versus 151.5 ± 33.4; p=0.35) (IKT task: 123.9 ± 41.0 versus 122.9 ± 44.9; p=0.986). Following two training sessions, there was a significant increase in the scores of PT task for the 2D (130.8 ± 18.7 versus 222.6 ± 7.0; p = 0.0004) and the 3D groups (151.5 ± 33.4 versus 211.7 ± 16.2; p = 0.0001). Similarly, there was a significant increase in the scores of IKT task for the 2D (123.9 ± 41.0 versus 373.3 ± 47.2; p = 0.003) and the 3D groups (122.9 ± 44.9 versus 338.8 ± 28.6; p = 0.0005). However, there was no significant difference in the final assessment scores between 2D and 3D groups for both tasks (p > 0.05). Therefore, 3D laparoscopic systems do not provide an advantage over 2D systems for training novices in basic laparoscopic skills.
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Du, Yujia, Rui Jiang, and Haining Wang. "Ergonomic Design and Assessment of an Improved Handle for a Laparoscopic Dissector Based on 3D Anthropometry." International Journal of Environmental Research and Public Health 20, no. 3 (January 29, 2023): 2361. http://dx.doi.org/10.3390/ijerph20032361.
Повний текст джерелаАнотація:
Laparoscopic surgery (LS) has been shown to provide great benefits to patients compared with open surgery. However, surgeons experience discomfort, low-efficiency, and even musculoskeletal disorders (MSDs) because of the poor ergonomic design of laparoscopic instruments. A methodology for the ergonomic design of laparoscopic dissector handles considering three-dimensional (3D) hand anthropometry and dynamic hand positions was addressed in this research. Two types of hand positions for grasping and stretching were scanned from 21 volunteers using a high-resolution 3D scanner. The 3D anthropometric data were extracted from these 3D hand pose models and used to design an improved handle (IH) that provides additional support for the thumb, a better fit to the purlicue, and a more flexible grasp for the index finger. Thirty subjects were invited to evaluate the IH in terms of muscular effort, goniometric study of motion, and efficiency and effectiveness during four trials of a laparoscopic training task. Questionnaires provided subjective parameters for ergonomic assessment. Positive results included less muscle load in the trapezius as well as significant but small angular differences in the upper limb. No significant reduction in the trial time and no increased percentage of the achievement were observed between the IH and the commercial handle (CH). Improved intuitiveness, comfort, precision, stability, and overall satisfaction were reported. IH provides significant ergonomic advantages in laparoscopic training tasks, demonstrating that the proposed methodology based on 3D anthropometry is a powerful tool for the handle design of laparoscopic dissectors and other surgical instruments.
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Kostov, Gancho, Rossen Dimov, and Mladen Doykov. "Comparison of short term results following robotic and laparoscopic total gastrectomy and D2 lymph node dissection." Folia Medica 64, no. 6 (December 31, 2022): 889–95. http://dx.doi.org/10.3897/folmed.64.e89545.
Повний текст джерелаАнотація:
Introduction: In the last decade, there has been a progressive shift from open to mini-invasive operative techniques for surgical resection of gastric cancer. Advanced equipment of surgical robots, with its 3D visualization, steady camera view, flexible instrument tips, attracts more and more practitioners in performing robotic gastrectomy with D2 dissection in gastric cancer patients. Thus, the comparison of some basic oncological as well as some surgical variables related to laparoscopic and robotic gastrectomy and D2 lymphadenectomy is necessary. Aim: The aim of the study was to compare our initial short-term results after robotic and laparoscopic gastrectomy. Materials and methods: A retrospective cohort study was performed. For a period of four years between January 2018 and August 2022, a total number of 110 patients with total gastrectomy and D2 lymphadenectomy due to gastric cancer operated in Department of General Surgery, Kaspela University Hospital, Plovdiv, were included into the study. They were separated in two groups: thirty-eight patients with robotic surgery and 72 with laparoscopic assisted procedure. Results: The oncological variables such as location of tumor, nodal status, number of lymph nodes removed, and pathological tumor showed no statistically significant differences between robotic and laparoscopic group. The demographic variables as age, sex, BMI, as well as ASA score also demonstrated no remarkable difference in both groups (p>0.05). The overall complication rate were similar (p=0.983). Conclusion: We found no significant advantages of robotic over laparoscopic gastric surgery in our patients. However, we think that robotic surgery is effective, safe, and promising approach to the treatment of gastric cancer capable of correcting some of the disadvantages of laparoscopy.
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Ma, Bei. "Analysis of the Results of Rectal Cancer Treatment via 3D Laparoscopic Natural Orifice Specimen Extraction Surgery (NOSES IV)." Journal of Clinical and Nursing Research 6, no. 5 (September 5, 2022): 30–34. http://dx.doi.org/10.26689/jcnr.v6i5.4263.
Повний текст джерелаАнотація:
Objective: To investigate the effect of 3D laparoscopic natural orifice specimen extraction surgery as rectal cancer treatment. Methods: The study was carried out in Shaanxi Provincial People’s Hospital from July 2021 to July 2022. 80 rectal cancer patients were selected and divided into two groups which are the experimental group and control group. The experimental group was given 3D laparoscopic surgery while the control group was given 2D laparoscopic surgery. The results were compared and analysed. Results: The patients in the experimental group had shorter operative and evacuation times, less intraoperative bleeding, and a lower rate of complications. Conclusion: The clinical application of 3D laparoscopic radical surgery for rectal cancer via natural lumen extraction is more effective, which can promote patients' recovery and reduce the incidence of adverse events.
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Lin, Jian-Xian, Changming Huang, Chaohui Zheng, Ping Li, Jianwei Xie, Jiabin Wang, Jun Lu, Qiyue Chen, Longlong Cao, and Mi Lin. "Clinical outcomes of three-dimensional versus two-dimensional laparoscopic surgery for gastric cancer: A single center, prospective, randomized trial—An interim report." Journal of Clinical Oncology 34, no. 4_suppl (February 1, 2016): 53. http://dx.doi.org/10.1200/jco.2016.34.4_suppl.53.
Повний текст джерелаАнотація:
53 Background: Laparoscopic surgery is more challenging compared with open surgery, in part because surgeons must operate in three-dimensional (3D) space through a two-dimensional (2D) projection on a monitor, which results in loss of depth perception. To counter this problem, 3D imaging for laparoscopic was developed. However, there is limited evidence regarding its efficacy and safety. We therefore conducted a phase III, single center, prospective, randomized study to validate the efficacy and safety of 3D laparoscopic gastrectomy for gastric cancer compared with 2D laparoscopic surgery. Methods: The eligible criteria were pathologically-proven adenocarcinoma, 18 to 75 years of age, no history of other malignant tumor, chemotherapy, or radiotherapy, and clinical stage T1-4aN0-3M0 with R0 resection. The primary end point was to determine whether there is a difference in operation time between the two groups. The morbidity and mortality were compared to evaluate the safety of this trial. Results: A total of 196 patients were randomized (97 cases in 3D Group; 99 cases in 2D Group) between January 1, 2015 and August 31, 2015. There were no significant differences between the two groups in clinicopathological characteristics. The mean number of retrieved lymph nodes was similar in the 3D and 2D groups (35.6±14.1 vs. 36.1±13.5 per case). The operation time was similar in 3D and 2D groups (183.6±34.1 vs. 180.0±37.2 min). The blood loss in 3D Group was 59.6±45.6 ml, which was less than that in 2D Group (69.9±62.4 ml) without statistically different. There were no significant differences in times to resumption of activities, first flatus, resumption of soft diet, and post-operative stay between the two groups (P > 0.05, respectively). The morbidity of the 3D and 2D groups were 21.6% (21/97) and 17.1% (17/99), respectively (P = 0.428). There was no patient died during the postoperative stay in both groups. Conclusions: 3D laparoscopic gastrectomy is a safe and feasible procedure for gastric cancer. However, compared with 2D group, there was no so much benefit from 3D laparoscopic gastrectomy for gastric cancer. Clinical trial information: NCT02327481.
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Han, Y. S., H. T. Ha, J. R. Han, J. M. Chun, H. J. Kwon, S. G. Kim, and Y. J. Hwang. "Totally Laparoscopic Pancreaticoduodenectomy Using 3D Flexible Laparoscopic System." HPB 20 (September 2018): S654. http://dx.doi.org/10.1016/j.hpb.2018.06.2277.
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Bogomolov, Oleg A., Mikhail I. Shkolnik, Andrej D. Belov, Svetlana A. Sidorova, Denis G. Prokhorov, Igor Yu Lisitsyn, and Zaur K. Emirgaev. "Functional and early oncological results in 2D vs 3D laparoscopic prostatectomy." Urologicheskie vedomosti 8, no. 3 (December 15, 2018): 5–10. http://dx.doi.org/10.17816/uroved835-10.
Повний текст джерелаАнотація:
Aim. To evaluate functional and early oncologic results with 2D and 3D laparoscopic prostatectomy in patients with localized prostate cancer.
Materials and methods. In 2016 to 2017, 124 laparoscopic radical prostatectomies were performed for localized prostate cancer, 71 using 2D-HD and 53 using 3D-HD laparoscopic systems (Karl Storz). Data on total operative time, time required for prostatectomy and for anastomosis, estimated blood loss, intraoperative and early postoperative complications (Clavien-Dindo grade), early functional results, surgical margins, upgrading of clinical stage, and frequency of biochemical recurrence were recorded.
Results. The total operative was significantly higher in the 2D than in the 3D group (152 min [range 100–192 min] vs 126 min [90–154 min]), (p < 0.05). The shorter time in the 3D group was achieved by a decrease in the anastomosis time (38 ± 4 min vs 26 ± 4 min, p < 0.05). Significant blood loss was significantly greater in the 2D group (240 ± 80 ml vs 190 ± 70 ml, p < 0.05). The two groups did not differ significantly in terms of the incidence and severity of postoperative complications.
Conclusion. Compared with traditional 2D devices, using stereoscopic 3D laparoscopic devices for prostatectomy reduces total operative time, particularly during the reconstructive stage, as well as the volume of intraoperative blood loss. Additional prospective, randomized trials and longer postoperative follow-up are needed to confirm these findings.
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Light, Edward D., Salim F. Idriss, Kathryn F. Sullivan, Patrick D. Wolf, and Stephen W. Smith. "Real-Time 3D Laparoscopic Ultrasonography." Ultrasonic Imaging 27, no. 3 (July 2005): 129–44. http://dx.doi.org/10.1177/016173460502700301.
Повний текст джерелаАнотація:
We have previously described 2D array ultrasound transducers operating up to 10 MHz for applications including real time 3D transthoracic imaging, real time volumetric intracardiac echocardiography (ICE), real time 3D intravascular ultrasound (IVUS) imaging, and real time 3D transesophageal echocardiography (TEE). We have recently built a pair of 2D array transducers for real time 3D laparoscopic ultrasonography (3D LUS). These transducers are intended to be placed down a trocar during minimally invasive surgery. The first is a forward viewing 5 MHz, 11 times 19 array with 198 operating elements. It was built on an 8 layer multilayer flex circuit. The interelement spacing is 0.20 mm yielding an aperture that is 2.2 mm × 3.8 mm. The O.D. of the completed transducer is 10.2 mm and includes a 2 mm tool port. The average measured center frequency is 4.5 MHz, and the −6 dB bandwidth ranges from 15% to 30%. The 50 Ω insertion loss, including Gore MicroFlat cabling, is −81.2 dB. The second transducer is a 7 MHz, 36 times 36 array with 504 operating elements. It was built upon a 10 layer multilayer flex circuit. This transducer is in the forward viewing configuration and the interelement spacing is 0.18 mm. The total aperture size is 6.48 mm x 6.48 mm. The O.D. of the completed transducer is 11.4 mm. The average measured center frequency is 7.2 MHz, and the −6 dB bandwidth ranges from 18% to 33%. The 50 Ω insertion loss is −79.5 dB, including Gore MicroFlat cable. Real-time in vivo 3D images of canine hearts have been made including an apical 4-chamber view from a substernal access with the first transducer to monitor cardiac function. In addition, we produced real time 3D rendered images of the right pulmonary veins from a right parasternal access with the second transducer, which would be valuable in the guidance of cardiac ablation catheters for treatment of atrial fibrillation.
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Cheng, Jian, Zhifei Wang, Jie Liu, Changwei Dou, Weifeng Yao, and Chengwu Zhang. "Value of 3D printing technology combined with indocyanine green fluorescent navigation in complex laparoscopic hepatectomy." PLOS ONE 17, no. 8 (August 11, 2022): e0272815. http://dx.doi.org/10.1371/journal.pone.0272815.
Повний текст джерелаАнотація:
Background Laparoscopic hepatectomy (LH) has achieved rapid progress over the last decade. However, it is still challenging to apply laparoscopy to lesions located in segments I, VII, VIII, and IVa and the hepatic hilar region due to difficulty operating around complex anatomical structures. In this study, we applied three-dimensional printing (3DP) and indocyanine green (ICG) fluorescence imaging technology to complex laparoscopic hepatectomy (CLH) to explore the effects and value of the modified procedure. Materials and methods From January 2019 to January 2021, 54 patients with complex hepatobiliary diseases underwent LH at our center. Clinical data were collected from these patients and retrospectively analyzed. Results A total of 30 patients underwent CLH using the conventional approach, whereas 24 cases received CLH with 3DP technology and ICG fluorescent navigation. Preoperative data were compared between the two groups. In the 3DP group, we modified the surgical strategy of four patients (4/24, 16.7%) due to real-time intraoperative navigation with 3DP and ICG fluorescent imaging technology. We did not modify the surgical strategy for any patient in the non-3DP group (P = 0.02). There were no significant differences between the non-3DP and 3DP groups regarding operating time (297.7±104.1 min vs. 328.8±110.9 min, P = 0.15), estimated blood loss (400±263.8 ml vs. 345.8±356.1 ml, P = 0.52), rate of conversion to laparotomy (3/30 vs. 2/24, P = 0.79), or pathological outcomes including the incidence of microscopical R0 margins (28/30 vs. 24/24, P = 0.57). Additionally, there were no significant differences in postoperative complications or recovery conditions between the two groups. No instances of 30- or 90-day mortality were observed. Conclusion The optimal surgical strategy for CLH can be chosen with the help of 3DP technology and ICG fluorescent navigation. This modified procedure is both safe and effective, but without improvement of intraoperative and short-term outcomes.
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Kiani, Nauman Sadiq, Sherjeel Saulat Qazi, Jahanzeb Sheikh, Awais Ayub, Hamza Ashraf, Syed Saeed Uddin Qadri, and Mansoor Ejaz. "THE NEW GOLD STANDARD IN LAPAROSCOPIC IMAGING: 3D VS 4K LAPAROSCOPIC NEPHRECTOMY- A SINGLE CENTERED RANDOMIZED CONTROLLED TRIAL." Journal of Ayub Medical College Abbottabad 34, no. 4 (September 27, 2022): 790–94. http://dx.doi.org/10.55519/jamc-04-9611.
Повний текст джерелаАнотація:
Background: Thanks to progressive technology and modern innovations, laparoscopic procedures, being minimally invasive, have now supervened upon most open surgical procedures. Laparoscopic procedures have proven advantages over open procedures. The study was designed to compare the outcomes of laparoscopic nephrectomy between 3D and 4K camera resolutions. Methods: This randomized control trial carried out at Tabba Kidney institute, Karachi, Pakistan from July 2020 to April 2021, to our knowledge was the first of its kind comparative study in Pakistan and internationally. All patients diagnosed to have symptomatic non-functioning kidney on the basis of both renal scintigraphy and CT- KUB were divided through blocked randomization in to two different camera resolution groups, i.e., 3D vs 4K and outcomes in terms of operative time, haemoglobin fall, post procedure complications and in patient stay were recorded. Results: It was observed that the 3D group had a significantly shorter mean total operative time 172.1±36.9 vs 272.5±14.1 respectively (p<0.005). A significant difference was also observed in mean operative time for task 2 was 53.1±21.1 & 101±30.9 mins (p<0.005), and for task 3 was 67.18±18.3 & 112.5±37 mins (p=0.005) for 3D and 4K groups respectively. The mean haemoglobin drops in 3D and 4K groups was 0.51±1.6 & 0.73±1.1 respectively (p=0.7). Moreover, the mean hospital stay was 2.5±0.6 for 3D group & 2.7±0.9 for 4K group (p-value 0.8). Post-operative wound infection was observed in one patient in each group. No case had to be converted to surgery by an open approach. Conclusion: We concluded that despite being the latest technological advancement with a greater zooming capability, when used for performing laparoscopic nephrectomy, 4K imaging system couldn’t show any superiority over 3D imaging system, in different operative tasks and in terms of total operative time.
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Preda, Silviu Daniel, Cătălin Ciobîrcă, Gabriel Gruionu, Andreea Șoimu Iacob, Konstantinos Sapalidis, Lucian Gheorghe Gruionu, Ștefan Castravete, Ștefan Pătrașcu, and Valeriu Șurlin. "Preoperative Computer-Assisted Laparoscopy Planning for the Minimally Invasive Surgical Repair of Hiatal Hernia." Diagnostics 10, no. 9 (August 21, 2020): 621. http://dx.doi.org/10.3390/diagnostics10090621.
Повний текст джерелаАнотація:
Minimal invasive surgical procedures such as laparoscopy are preferred over open surgery due to faster postoperative recovery, less trauma and inflammatory response, and less scarring. Laparoscopic repairs of hiatal hernias require pre-procedure planning to ensure appropriate exposure and positioning of the surgical ports for triangulation, ergonomics, instrument length and operational angles to avoid the fulcrum effect of the long and rigid instruments. We developed a novel surgical planning and navigation software, iMTECH to determine the optimal location of the skin incision and surgical instrument placement depth and angles during laparoscopic surgery. We tested the software on five cases of human hiatal hernia to assess the feasibility of the stereotactic reconstruction of anatomy and surgical planning. A whole-body CT investigation was performed for each patient, and abdominal 3D virtual models were reconstructed from the CT scans. The optical trocar access point was placed on the xipho-umbilical line. The distance on the skin between the insertion point of the optical trocar and the xiphoid process was 159.6, 155.7, 143.1, 158.3, and 149.1 mm, respectively, at a 40° elevation angle. Following the pre-procedure planning, all patients underwent successful surgical laparoscopic procedures. The user feedback was that planning software significantly improved the ergonomics, was easy to use, and particularly useful in obese patients with large hiatal defects where the insertion points could not be placed in the traditional positions. Future studies will assess the benefits of the planning system over the conventional, empirical trocar positioning method in more patients with other surgical challenges.
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Chen, Hung-Jen, Chiuhsiang Joe Lin, Po-Hung Lin, and Zong-Han Guo. "The Effects of 3D and 2D Imaging on Brain Wave Activity in Laparoscopic Training." Applied Sciences 11, no. 2 (January 18, 2021): 862. http://dx.doi.org/10.3390/app11020862.
Повний текст джерелаАнотація:
The current study tested the effects of a state-of-the-art stereoscopic three-dimensional (3D) display and a traditional two-dimensional (2D) display on performance and mental workload during simulated laparoscopic tasks with different levels of depth perception over a longer duration than in previous publications. Two different simulated laparoscopic tasks with depth perception, peg transfer, and circle-tracing were performed by 12 participants using 2D and 3D vision systems. The task performances (mean completion time and mean error frequency) and mental workload measures (gamma and alpha brain wave activity, blink frequency and NASA-TLX ratings) were recorded as dependent variables. The physiological mental workload measures were collected via a MUSE EEG headband. The 3D vision system had advantages in mean movement time and mean error frequency in the depth-perception peg transfer task. The mean completion time of the non-depth perception circle-tracing task was significantly lower for 2D than for 3D. For the peg transfer task, EEG alpha wave activity was significantly higher for 3D than for 2D. The EEG gamma wave activity for 2D was significantly higher than that for 3D in both tasks. A significantly higher blink frequency was found for both the peg transfer task and the 3D system. The overall NASA-TLX score of the 2D system was significantly higher. The findings of this research suggest that a 3D vision system could decrease stress, state of attentiveness, and mental workload compared with those of a 2D system, and it might reduce the completion time and increase the precision of depth-perception laparoscopic operations.
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Dawar, Aradhana K., Akshay K. Nadkarni, and Tuleeka Sethi. "Isthmocele, an underecognised cause of secondary infertility and pregnancy outcome after endoscopic repair: a case report." International Journal of Reproduction, Contraception, Obstetrics and Gynecology 10, no. 4 (March 24, 2021): 1717. http://dx.doi.org/10.18203/2320-1770.ijrcog20211166.
Повний текст джерелаАнотація:
Isthmocele is a niche at the area of previous cesarean scar. 38 year old lady presented with secondary infertility and decreased ovarian reserve for IVF with previous caesarean 8 years back. Isthmocele confirmed on 3D USG. Hysteroscopic guided laparoscopic repair done after initial failed ET without surgery. Postsurgical observations were increased myometrial thickness, improvement of abnormal bleeding, pain and successful conception and delivery with frozen embryo transfer. Isthmocele is an iatrogenic pathology associated with obstetric and gynecological complications. It’s an under recognised cause of secondary infertility. Etiology could be poor tissue healing or surgical techniques favouring niche formation. It’s imperative to address to its causes during caesarean section to prevent it. Diagnosis is mostly missed. Given the absence of a clearly defined surgical method in literature, choosing the proper approach to treating isthmocele can be arduous. Laparoscopy provides a minimally invasive procedure in women with this defect with secondary infertility and improves the chances of conception.