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Добірка наукової літератури з теми "DSAEK"

Автор: Grafiati

Опубліковано: 10 березня 2023

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Статті в журналах з теми "DSAEK"

Bhandari, Vipul, Jagdeesh K. Reddy, Kirti Relekar, and Vijayalakshmi Prabhu. "Descemet’s Stripping Automated Endothelial Keratoplasty versus Descemet’s Membrane Endothelial Keratoplasty in the Fellow Eye for Fuchs Endothelial Dystrophy: A Retrospective Study." BioMed Research International 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/750567.

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Aim. To evaluate visual outcome and endothelial cell density (ECD) after Descemet’s Membrane Endothelial Keratoplasty (DMEK) in comparison with Descemet’s Stripping Automated Endothelial Keratoplasty (DSAEK) in the fellow eye for Fuchs endothelial dystrophy (FED).Design. Single-centre, retrospective case series.Methods. 30 eyes of 30 patients undergoing DMEK, who completed a 1-year follow-up, were compared with 30 fellow eyes which underwent DSAEK for bilateral FED. Main outcome measures studied included Best Corrected Visual Acuity (BCVA) and ECD during a 1-year follow-up period.Results. BCVA improved from 0.78 ± 0.35 logMAR, and 0.73 ± 0.31 logMAR before surgery to 0.22 ± 0.1 logMAR and 0.35 ± 0.12 logMAR 6 months after DMEK and DSEK, respectively (P<0.001). At one year after surgery, the BCVA was maintained at 0.21 ± 0.12 logMAR and 0.34 ± 0.1 logMAR, respectively, after DMEK and DSAEK. A statistically better visual outcome was observed after DMEK compared to DSAEK (P<0.05) in fellow eyes.Conclusions. DMEK provided better visual rehabilitation when compared to DSAEK. Nevertheless, there were no significant differences with regard to the ECD within a 1-year follow-up.

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John, Thomas. "Diferencia entre DSEK, DSAEK & DMEK." Highlights of Ophthalmology 43, no. 5ESP (2015): 9–11. http://dx.doi.org/10.5005/hos-10101-43503.

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John, Thomas. "Difference Among DSEK, DSAEK & DMEK." Highlights of Ophthalmology 43, no. 5ENG (2015): 9–11. http://dx.doi.org/10.5005/hoo-10101-43503.

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Wisse, Robert P. L., Jens A. Achterberg, and Allegonda Van der Lelij. "DSAEK." Cornea 33, no. 3 (March 2014): 230–34. http://dx.doi.org/10.1097/ico.0000000000000042.

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Droutsas, Konstantinos, Myrsini Petrelli, Dimitrios Miltsakakis, Konstantinos Andreanos, Anastasia Karagianni, Apostolos Lazaridis, Chrysanthi Koutsandrea, and George Kymionis. "Visual Outcomes of Ultrathin-Descemet Stripping Endothelial Keratoplasty versus Descemet Stripping Endothelial Keratoplasty." Journal of Ophthalmology 2018 (November 1, 2018): 1–5. http://dx.doi.org/10.1155/2018/5924058.

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Purpose. To examine the impact of graft thickness (GT) on postoperative visual acuity and endothelial cell density after ultrathin-Descemet stripping automated endothelial keratoplasty (UT-DSAEK) versus conventional DSAEK. Methods. The medical records of all patients who underwent DSAEK at our institute during a 2-year period were reviewed. After excluding subjects with low visual potential, 34 eyes were divided into two groups based on the postoperative GT as measured with anterior segment optical coherence tomography (AS-OCT): an UT-DSAEK group (GT ≤ 100 μm, n=13 eyes) and a DSAEK group (GT > 100 μm, n=21 eyes). The groups were compared with regard to best-corrected visual acuity (BCVA), subjective refraction, central corneal thickness (CCT), GT, and endothelial cell density (ECD). Results. Preoperative BCVA (logMAR) was 1.035 ± 0.514 and 0.772 ± 0.428 for UT-DSAEK and DSAEK, respectively (P=0.072). At 6 months postoperatively, BCVA was 0.088 ± 0.150 following UT-DSAEK and 0.285 ± 0.158 following DSAEK (P=0.001). Conclusion. DSAEK grafts with a thickness under 100 μm offered better visual outcomes during the early postoperative period.

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Hsiao, Chen, Meir, Tan, Hsiao, Lin, Ma, Yeh, Wu, and Chen. "Clinical Outcomes of Penetrating Keratoplasty and Descemet Stripping Automated Endothelial Keratoplasty in Asian Population with American Corneas." International Journal of Environmental Research and Public Health 16, no. 22 (November 17, 2019): 4547. http://dx.doi.org/10.3390/ijerph16224547.

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To determine the comparative efficacy and safety of penetrating keratoplasty (PK) and Descemet stripping automated endothelial keratoplasty (DSAEK) in the Asian population receiving imported donor corneas, our single-center retrospective study provides analysis supporting the transition from PK to DSAEK in the Asian population using imported American donor corneas. We analyzed 259 patients with 241 and 57 cases of PK and DSAEK respectively during 2008 to 2017 using imported corneas at Chang Gung Memorial Hospital, Linkou, Taiwan. In terms of long-term graft survival analysis, there was no difference between PK and DSAEK (log-rank p = 0.386, HR = 0.920, 95% CI: [0.641–1.380]). However, Cox proportional regression analysis revealed that corneal survival rate of DSAEK group in the first 100 days after transplantation was inferior than that of PK group (log-rank p < 0.001, HR = 2.733, 95% CI: [1.501–4.977])]. Despite the inferior survival rate, there were significantly less neovascularization and Descemet membrane folds in the DSAEK group. Importantly, the non-complication rate of DSAEK was much higher than that of PK with significant difference (PK, 25.7% vs DSAEK 42.0%, p = 0.022). Collectively, DSAEK is suggested as an alternative surgical modality in Asian patients using imported American donor corneas because of less complication, and no difference in long-term corneal graft survival rates between PK and DSAEK.

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Taravella, Michael J., Vipul Shah, and Richard Davidson. "Ultrathin DSAEK." International Ophthalmology Clinics 53, no. 2 (2013): 21–30. http://dx.doi.org/10.1097/iio.0b013e31827823a8.

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Castellucci, Massimo, Costanza Novara, Alessandra Casuccio, Giovannni Cillino, Carla Giordano, Valentina Failla, Vincenza Bonfiglio, Maria Vadalà, and Salvatore Cillino. "Bilateral Ultrathin Descemet’s Stripping Automated Endothelial Keratoplasty vs. Bilateral Penetrating Keratoplasty in Fuchs’ Dystrophy: Corneal Higher-Order Aberrations, Contrast Sensitivity and Quality of Life." Medicina 57, no. 2 (February 3, 2021): 133. http://dx.doi.org/10.3390/medicina57020133.

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Background and Objectives: The objective of this paper is to compare the visual outcomes and quality of life (QoL) after bilateral ultrathin Descemet’s stripping automated endothelial keratoplasty (UT-DSAEK) with bilateral penetrating keratoplasty (PK) for Fuchs’ endothelial dystrophy (FED). Materials and Methods: Retrospective comparative cohort study, including 11 patients with FED who underwent bilateral PK and 13 patients with FED who underwent bilateral UT-DSAEK. All patients were already pseudophakic or had undergone a combined cataract procedure. The main outcomes were corrected distance visual acuity (CDVA) corneal higher-order aberrations (HOAs), contrast sensitivity (CS) and quality of life (QoL). Results: The mean follow-up after the second eye surgery was 32.5 ± 10.2 months in PK and 19.6 ± 8.6 months in UT-DSAEK patients. The CDVA in the UT-DSAEK group was significantly better than in the PK one (0.18 ± 0.07 vs. 0.35 ± 0.16 logMAR, p < 0.0001). The mean anterior corneal total HOAs of the central 5 mm were significantly lower in UT-DSAEK eyes than in PK eyes (0.438 ± 0.078 µ and 1.282 ± 0.330 µ respectively, p < 0.0001), whilst the mean posterior total HOAs did not differ between groups (0.196 ± 0.056 µ and 0.231 ± 0.089 µ, respectively, p = 0.253). The CS was lower at 0.75 and 1.5 cycles/degree in P the K group when compared to the DSAEK one (p = 0.008 and 0.005, respectively). The QoL scores by the NEI RQL-42 test exhibited better values in DSAEK patients in 9 out of 13 scales. Conclusion: Our study confirms that UT-DSAEK provides a better visual function in terms of CDVA and CS, together with lower HOAs, when compared to PK. Hence, the vision-related QoL, binocularly evaluated by the NEI RQL-42 items, indicates a higher satisfaction in UT-DSAEK eyes.

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Dapena, Isabel, Lisanne Ham, and Gerrit RJ Melles. "Endothelial keratoplasty: DSEK/DSAEK or DMEK - the thinner the better?" Current Opinion in Ophthalmology 20, no. 4 (July 2009): 299–307. http://dx.doi.org/10.1097/icu.0b013e32832b8d18.

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Smyth, Aoife, Grace Anne McCabe, Patrick Murtagh, and Elizabeth Margaret McElnea. "Tectonic Descemet’s stripping automated endothelial keratoplasty for corneal perforation." BMJ Case Reports 15, no. 4 (April 2022): e247345. http://dx.doi.org/10.1136/bcr-2021-247345.

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We report the use of Descemet stripping automated endothelial keratoplasty (DSAEK) for the treatment of sterile corneal perforation after trauma. In an eye with corneal perforation and cataract due to trauma, cataract surgery and DSAEK were performed. Corneal integrity was promptly restored and the patient avoided tectonic anterior lamellar and penetrating keratoplasty. DSAEK may be performed for the management of corneal perforation.

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Більше джерел

Дисертації з теми "DSAEK"

Sánchez, Chaveinte Daniel. "Parámetros ópticos en ojos intervenidos de DSAEK." Doctoral thesis, TDR (Tesis Doctorales en Red), 2015. http://hdl.handle.net/10803/336979.

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La distrofia endotelial de Fuchs es una enfermedad común, que se caracteriza por la pérdida progresiva de células endoteliales y edema estromal. La cirugía “Descemet Stripping Automated Endothelial Keratoplasty” (DSAEK) es la técnica elegida por muchos cirujanos para tratar dicha enfermedad. Esta técnica se basa en la sustitución selectiva del endotelio enfermo por un tejido donante sano. Dicha técnica tiene la ventaja de una rápida recuperación visual. Sin embargo, tras la cirugía, los pacientes suelen presentar un aumento de la luz dispersada por la córnea y degradación óptica producida por un incremento en las aberraciones oculares. Las aberraciones son el principal condicionante de la calidad de imagen. Debido al cambio en el contorno corneal asociado a la adición del lentículo donante en ojos intervenidos de DSAEK, no es sorprendente que las aberraciones derivadas de la superficie posterior estén incrementadas, aunque no hay que olvidar que la superficie anterior puede presentar irregularidades por la larga duración de la enfermedad corneal. Dicha irregularidad junto con la cicatrización corneal resultante tras la cirugía, puede provocar un aumento en la dispersión de la luz por la pérdida de transparencia de la superficie anterior corneal, que la cirugía DSAEK no es capaz de solucionar. Por lo tanto, el propósito de este estudio es analizar el dioptrio corneal de pacientes diagnosticados de distrofia endotelial de Fuchs e intervenidos de cirugía DSAEK y compararlo con las córneas de un grupo control formado por pacientes intervenidos de cirugía de catarata. Para ello, se han analizado 33 ojos de 24 pacientes, todos ellos diagnosticados de distrofia endotelial de Fuchs y tratados con DSAEK. Se han realizado exámenes de agudeza visual, refracción subjetiva, biomicroscopía, exploración de fondo de ojo, análisis de aberraciones con Pentacam, medición del espesor corneal con Pentacam y OCT y evaluación de la dispersión intraocular mediante C-Quant. Los resultados obtenidos muestran como la máxima agudeza visual corregida aumenta tras la cirugía DSAEK y el equivalente esférico sufre un cambio miópico, aunque dicho cambio no es significativo. Las aberraciones oculares permanecen prácticamente sin cambios salvo las de la superficie posterior corneal. Los valores de espesor corneal son significativamente mayores con respecto al grupo control y el lentículo endotelial presenta diferente espesor entre el centro y la periferia. Por último, la dispersión intraocular es significativamente mayor con respecto al grupo control, con un pico de mayor densitometría, medida mediante Pentacam en la superficie anterior corneal. A la vista de los resultados obtenidos, la cirugía DSAEK es eficaz para el tratamiento de la distrofia endotelial de Fuchs, aunque diversos parámetros ópticos no retornan a sus valores normales tras la cirugía.
Fuchs endothelial dystrophy is a common progressive disease, characterized by progressive loss of endothelial cells and stromal edema. Descemet Stripping Automated Endothelial Keratoplasty (DSAEK) is the technique of choice for many surgeons to remove this disease. The technique is based on the selective replacement of diseased endothelium replaced by a healthy donor tissue. This technique has the advantage of a fast visual recovery. However, after the surgery, patients usually present increased light scattered by the cornea and optical degradation caused by increased ocular aberrations. The ocular aberrations are the primary determinant of image quality. Due to the change in the corneal shape associated with the addition of the lenticule donor in eyes with DSAEK surgery, it is not surprising that aberrations arising from the posterior surface are increased, although we must not forget that the anterior surface can be slightly different due to the long-term corneal disease. Such irregularity, with the resulting corneal scarring after surgery, can cause an increase in light scattering by the loss of transparency of the corneal anterior surface that even DSAEK surgery cannot solve. Therefore, the purpose of this study is to analyze the corneal diopter of patients diagnosed with Fuchs endothelial dystrophy that underwent DSAEK and compare to the corneas of a control group of patients undergoing cataract surgery. To make this, we analyzed 33 eyes of 24 patients, all diagnosed with Fuchs endothelial dystrophy and treated with DSAEK. They have conducted tests of visual acuity, subjective refraction, biomicroscopy, fundus examination, analysis of aberrations by Pentacam, corneal thickness measurement by Pentacam and OCT and evaluation of the intraocular Straylight measured by C-Quant. The results show that the maximum corrected visual acuity increases after surgery and a myopic change in the spherical equivalent is made, but this change is not significant. Ocular aberrations remain unchanged except for the posterior corneal surface. Corneal thickness values are significantly higher compared to the control group and the endothelial lenticule presents variation in thickness between the center and the periphery. Finally, intraocular Straylight is significantly higher compared to the control group, with a higher peak of densitometry in the anterior corneal surface measured by Pentacam. In light of the obtained results, DSAEK surgery is an effective treatment for Fuchs endothelial dystrophy, although several optical parameters do not return to normal after surgery.

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Ko, Lee Yohan [Verfasser], and Walter [Akademischer Betreuer] Sekundo. "Irregularität der hinteren Hornhautoberfläche nach Femtosekundenlaser-assistierter versus Mikrokeratom-assistierter Descemet stripping automated endothelial keratoplasty (DSAEK) / Yohan Ko Lee. Betreuer: Walter Sekundo." Marburg : Philipps-Universität Marburg, 2015. http://d-nb.info/1070623911/34.

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Albuquerque, Luciane de. "Avaliação das repercussões do transplante lamelar posterior sobre o endotélio corneano de suínos utilizando a microscopia eletrônica de varredura. Estudo in vitro." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/103436.

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O transplante endotelial tem sido cada vez mais utilizado como uma alternativa ao transplante penetrante no tratamento das desordens do endotélio da córnea. No entanto, ao consultar a literatura não foram encontradas referências identificando em qual momento da cirurgia de transplante lamelar posterior ocorre maior dano às células endoteliais do botão doador. Objetivou-se avaliar e comparar as repercussões de duas etapas do transplante lamelar posterior sobre o endotélio da córnea de suínos utilizando a microscopia eletrônica de varredura. Utilizaram-se 30 bulbos oculares de 20 suínos, mestiços (1/2 Large White ½ Landrace), machos, com seis meses de idades e com peso médio de 100 kg. Foram designados dois grupos experimentais. No G1 constituído por 10 bulbos oculares, foi avaliado o dano ao endotélio da córnea após a confecção do botão doador. No G2, formado por 20 bulbos oculares, foi avaliado o dano ao endotélio da córnea após a inserção do botão doador no leito receptor utilizando introdutor de Busin. Perdas celulares ocorreram e variaram de acordo com o grupo estudado. A perda endotelial média do G1 foi 8,41% e no G2 17,31%. As diferenças foram estatisticamente significativas entre os grupos estudados. No presente estudo e nas condições experimentais realizadas foi possível concluir que a inserção do botão doador induziu maiores danos ao endotélio corneano de suínos, comparativamente à sua criação.
Endothelial keratoplasty has been adopted as an alternative to penetrating keratoplasty in the treatment of corneal endothelial disorders. However, references identifying at what time of posterior lamellar transplant surgery occurs greater damage to the endothelial cells of the donor button were not found, when consulting the literature. The aim of this study was to assess and compare the effects of two stages of posterior lamellar keratoplasty on the corneal endothelium of swine using scanning electron microscopy. A total of 30 eyes were evaluated in this study. The eyes were divided in two groups of ten each eye: G1 (evaluated after delamination and preparation of the donor button) and G2 (evaluated after delamination and preparation and insertion of the donor button using Busin glide). Cell loss occurred and varied according to the study group. The average endothelial cell loss was 8.41% in G1 and 17.31% in G2. The differences were statistically significant between the groups studied. Scanning electron microscopy demonstrated damage in either group. The average endothelial cell loss was 8.41% in G1 and 17.31% in G2. The differences were statistically significant between the groups studied. It was concluded in the present study and also in the experimental conditions that the insertion of the donor button has induced greater damage to the corneal endothelium of swine compared to its creation.

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Vieira, Joana Tender Rodrigues. "Transplante Endotelial: impacto do DSAEK na deformação corneana." Master's thesis, 2017. https://hdl.handle.net/10216/105100.

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Vieira, Joana Tender Rodrigues. "Transplante Endotelial: impacto do DSAEK na deformação corneana." Dissertação, 2017. https://repositorio-aberto.up.pt/handle/10216/105100.

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Favuzza, Eleonora. "Ultrathin Descemet stripping automated endothelial keratoplasty versus Descemet membrane endothelial keratoplasty: a fellow-eye comparison." Doctoral thesis, 2020. http://hdl.handle.net/2158/1191084.

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In the past decade endothelial keratoplasty has become the gold standard for the treatment of endothelial dysfunctions, such as Fuchs endothelial dystrophy or pseudophakic bullous keratopathy. More recently a new procedure that allows us to selectively transplant only the Descemet membrane and the endothelium, Descemet Membrane Endothelial Keratoplasty (DMEK), has been developed; this technique is a refinement of Descemet stripping automated endothelial keratoplasty (DSAEK), where a relatively thick graft composed of endothelium, Descemet membrane and a variable portion of posterior stroma is transplanted. Due to its quicker postoperative recovery and similar or better visual outcome and lower rejection rates, DMEK has rapidly gained popularity, even though its widespread adoption is still limited by the difficult and less predictable surgical technique that prevents its use in complicated cases, and by its higher rates of postoperative rebubbling. Nevertheless, recently-published studies suggest that DSAEK grafts thinner than 130 µm (ultrathin, UT-DSAEK) may lead to postoperative visual outcomes which are better than conventional DSAEK and comparable to DMEK. In this context, the purpose of the study was to retrospectively compare the visual outcome and patients’ satisfaction after ultrathin Descemet stripping automated endothelial keratoplasty (UT-DSAEK) and Descemet membrane endothelial keratoplasty (DMEK) performed on the fellow eyes of the same patients.

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Sun, Jen-Pin, and 孫仁彬. "Using In Vivo Confocal Microscopy to Detect the Wound Healing Process after DSAEK and NDSAEK." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/90594393568786635348.

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碩士
國立臺灣大學
臨床醫學研究所
101
【Background and Study Purpose】 Although traditional penetrating keratoplasty (PK) was a widely accepted procedure, descemet''s stripping automated endothelial keratoplasty (DSAEK) becomes popular and has replaced PK in the treatment of endothelial disorders. DSAEK is unique for the smaller wound size, lesser astigmatism, lesser chance of intraoperative expulsive hemorrhage, faster/better visual outcome and faster wound healing. However, there still exist many unknown factors for a better surgery. Most surgeons removed Descemet’s membrane and endothelial layer during DSAEK surgery follower by insertion of posterior corneal lamella. However, still some surgeons keep Descemet’s membrane and endothelial layer before the attachment of the posterior corneal lamella (n-DSAEK). They claim that the remained Descemet’s membrane/ endothelial layer between donor and recipient corneas will not inference corneal clarity and visual prognosis. The purpose of this project is to use New Zealand White Rabbit as the experimental model to find out the best surgical condition for DSAEK. 【Material and Method】 We will use femtosecond laser machine to create donor corneal posterior lamellas. The posterior corneal lamellas will be transplanted to rabbit corneas with or without stripping of Descemet’s membrane/corneal endothelial layer. After operation, the rabbit eyes will receive in vivo confocal microscopic examination every two weeks for totally 3 months. The Descemet’s membrane/corneal endothelial layer between donor and recipient corneas will be examined by morphology and Z-profile. At post-operative 3 months, the rabbit eyes will be obtained, and examined by anterior segment OCT to evaluate the attachment and healing of the transplanted grafts. In addition, the tissue section will be examined by H&E staining, immunohistochemical staining and transmission electron microscopy. 【Results】 The interface recipient endothelial cell density in nDSAEK gradually decreased in the follow-up period. The interface haziness of DSAEK and nDSAEK diminished gradually, and nDSAEK has greater interface opacity than DSAEK at all time points examined. There was no significant difference of total corneal thickness between DSAEK and nDSAEK at all time points. Tissue section using H&E staining showed preserved interface recipient Descemet’s membrane and decreased endothelial cell density three months after nDSAEK. Transmission electron microscopy revealed morphologically changed interface recipient endothelial cell and some collagen fibers similar as in graft stroma in recipient endothelial cell in nDSAEK three months after operation. The recipient endothelial cell didn’t express markers of pump function and epithelial cell by immunohistochemical staining. However some recipient endothelial cell went apoptotic pathway. 【Conclusion】 NDSAEK has similar surgical results as DSAEK in all parameters measured in this study. However, the interface haziness was greater than DSAEK, and recipient endothelial cell at the interface underwent morphological change and showed some phagocytic activity during the whole observational process. The endothelial cell density decreased due to cell apoptosis

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Книги з теми "DSAEK"

Jacob, Soosan. DSEK and DSAEK. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0346-5.

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Thomas, John. Corneal endothelial transplant: (DSAEK, DMEK & DLEK). New Delhi: Jaypee-Highlights Medical Pub., 2010.

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Jacob, Soosan. Mastering Endothelial Keratoplasty: DSAEK, DMEK, E-DMEK, PDEK, Air pump-assisted PDEK and others, Volume I. Ingramcontent, 2016.

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Jacob, Soosan. Mastering Endothelial Keratoplasty: DSAEK, DMEK, E-DMEK, PDEK, Air pump-assisted PDEK and others, Volume I. Springer, 2018.

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Jacob, Soosan. Mastering Endothelial Keratoplasty: DSAEK, DMEK, e-DMEK, PDEK, Air Pump-Assisted PDEK and Others, Volume I. Springer London, Limited, 2016.

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Jacob, Soosan. Mastering Endothelial Keratoplasty: DSAEK, DMEK, E-DMEK, PDEK, Air pump-assisted PDEK and others, Volume II. Springer, 2018.

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Jacob, Soosan. Mastering Endothelial Keratoplasty: DSAEK, DMEK, e-DMEK, PDEK, Air Pump-Assisted PDEK and Others, Volume II. Springer London, Limited, 2016.

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Agarwal, Amar, and Terry Kim. Endothelial Keratoplasty: Mastering DSEK, DMEK, and PDEK. Thieme Medical Publishers, Incorporated, 2017.

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1951-, Price Francis W., and Price Marianne O. 1952-, eds. DSEK: What you need to know about endothelial keratoplasty. Thorofare, NJ: SLACK Inc., 2009.

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Wachsmann, Shelley. Deep-Submergence Archaeology. Edited by Ben Ford, Donny L. Hamilton, and Alexis Catsambis. Oxford University Press, 2012. http://dx.doi.org/10.1093/oxfordhb/9780199336005.013.0009.

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Coastal waters represent the greatest danger to ships and seafarers, as ships are most commonly lost at the intersection of water and shore. Ships sinking in deep water undergo a gradual transition. Deep-submergence archaeology refers to the archaeological study of cultural resources beyond the limits of traditional diving. The totality of archaeological exploration at great depths—discovering, recording, excavating, and recovering—requires function-specific tools. Deep Submergence Archaeological Excavations (DSAE) takes advantage of a remarkable existent toolkit, designed for a variety of oceanographic purposes other than the study of ancient shipwrecks. What is lacking at present is a comprehensive methodology for deepwater excavation. The ultimate goal of DSAE is to develop the technologies and the skills that permit expeditions to excavate and safely raise the contents and hull of an entire ship for conservation, study, and display.

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Частини книг з теми "DSAEK"

Nahum, Yoav, and Massimo Busin. "Ultrathin DSAEK." In Mastering Endothelial Keratoplasty, 133–41. New Delhi: Springer India, 2016. http://dx.doi.org/10.1007/978-81-322-2818-9_8.

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Koplin, Richard S., David C. Ritterband, Emily Schorr, John A. Seedor, and Elaine Wu. "Surgical Tray: DSAEK." In The Scrub's Bible, 195–96. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44345-0_35.

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Albé, Elena, Vincenzo Scorcia, and Massimo Busin. "DSAEK and UT-DSAEK in FED: Step-by-Step Approach." In Current Treatment Options for Fuchs Endothelial Dystrophy, 119–32. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-43021-8_8.

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Koplin, Richard S., David C. Ritterband, Emily Schorr, John A. Seedor, and Elaine Wu. "Corneal Transplantation: Endothelial Keratoplasty/DSAEK." In The Scrub's Bible, 169–74. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44345-0_28.

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Baydoun, Lamis, Isabel Dapena, and Gerrit Melles. "Evolution of Posterior Lamellar Keratoplasty: PK – DLEK – DSEK/DSAEK – DMEK – DMET." In Current Treatment Options for Fuchs Endothelial Dystrophy, 73–85. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-43021-8_5.

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Thiel, Michael A., and Claude Kaufmann. "Abstoßungsreaktion nach Endotheltransplantation (DSAEK) der Hornhaut." In Fallbeispiele Augenheilkunde, 45–46. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-42219-5_13.

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Donnenfeld, Eric, and Alanna S. Nattis. "Descemet’s Stripping Automated Endothelial Keratoplasty (DSAEK)." In Operative Dictations in Ophthalmology, 53–55. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-45495-5_13.

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Donnenfeld, Eric, and Alanna S. Nattis. "Descemet’s Stripping Automated Endothelial Keratoplasty (DSAEK)." In Operative Dictations in Ophthalmology, 65–67. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-53058-7_15.

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Sanchez, P. James, Michael D. Straiko, and Mark A. Terry. "Complications of Descemet Stripping Automated Endothelial Keratoplasty (DSAEK) Surgery." In Current Treatment Options for Fuchs Endothelial Dystrophy, 189–204. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-43021-8_12.

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Jesica, Bekerman, Grandin C. Juan, Gordillo H. Carlos, and Lotfi C. Adriana. "Graft Survival in Descemet’s Stripping Automated Endothelial Keratoplasty (DSAEK)." In Mastering Endothelial Keratoplasty, 159–68. New Delhi: Springer India, 2016. http://dx.doi.org/10.1007/978-81-322-2821-9_10.

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Тези доповідей конференцій з теми "DSAEK"

Luo, Yin-Jyun, Sebastian Ewert, and Simon Dixon. "Towards Robust Unsupervised Disentanglement of Sequential Data — A Case Study Using Music Audio." In Thirty-First International Joint Conference on Artificial Intelligence {IJCAI-22}. California: International Joint Conferences on Artificial Intelligence Organization, 2022. http://dx.doi.org/10.24963/ijcai.2022/458.

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Disentangled sequential autoencoders (DSAEs) represent a class of probabilistic graphical models that describes an observed sequence with dynamic latent variables and a static latent variable. The former encode information at a frame rate identical to the observation, while the latter globally governs the entire sequence. This introduces an inductive bias and facilitates unsupervised disentanglement of the underlying local and global factors. In this paper, we show that the vanilla DSAE suffers from being sensitive to the choice of model architecture and capacity of the dynamic latent variables, and is prone to collapse the static latent variable. As a countermeasure, we propose TS-DSAE, a two-stage training framework that first learns sequence-level prior distributions, which are subsequently employed to regularise the model and facilitate auxiliary objectives to promote disentanglement. The proposed framework is fully unsupervised and robust against the global factor collapse problem across a wide range of model configurations. It also avoids typical solutions such as adversarial training which usually involves laborious parameter tuning, and domain-specific data augmentation. We conduct quantitative and qualitative evaluations to demonstrate its robustness in terms of disentanglement on both artificial and real-world music audio datasets.

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Zhou, Han, Ping Yan, Jie Pei, Dayuan Wu, and You Guo. "Fault diagnosis of rotating machinery based on FA-DSAE." In 2020 10th Institute of Electrical and Electronics Engineers International Conference on Cyber Technology in Automation, Control, and Intelligent Systems (CYBER). IEEE, 2020. http://dx.doi.org/10.1109/cyber50695.2020.9279113.

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Jiang, Liying, Liqiang Qu, Xiao Cui, Jinglin Wang, Mingyue Yu, and Xiaochu Tang. "Fault Prediction Method of Gear Based on DSAE and GRU Network." In 2021 33rd Chinese Control and Decision Conference (CCDC). IEEE, 2021. http://dx.doi.org/10.1109/ccdc52312.2021.9602330.

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Saufi, Syahril Ramadhan, Mat Hussin Ab Talib, Zair Asrar Bin Ahmad, Lim Meng Hee, Mohd Salman Leong, and Mohd Haffizzi Bin Md Idris. "Comparative analysis of optimization algorithm on DSAE model for bearing fault diagnosis." In 2021 IEEE International Conference on Sensors and Nanotechnology (SENNANO). IEEE, 2021. http://dx.doi.org/10.1109/sennano51750.2021.9642578.

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