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Artykuły w czasopismach na temat "HIFU transducer"
Shin, Eui-Ji, Byungwoo Kang i Jin Chang. "Real-Time HIFU Treatment Monitoring Using Pulse Inversion Ultrasonic Imaging". Applied Sciences 8, nr 11 (11.11.2018): 2219. http://dx.doi.org/10.3390/app8112219.
Pełny tekst źródłaLiu, Li, i Jian Sun. "A Study of High Intensity Focusing Ultrasonic Transducer". Applied Mechanics and Materials 201-202 (październik 2012): 20–23. http://dx.doi.org/10.4028/www.scientific.net/amm.201-202.20.
Pełny tekst źródłaShan, Feng, Xiasheng Guo, Juan Tu, Jianchun Cheng i Dong Zhang. "Multi-relaxation-time lattice Boltzmann modeling of the acoustic field generated by focused transducer". International Journal of Modern Physics C 28, nr 03 (marzec 2017): 1750038. http://dx.doi.org/10.1142/s0129183117500383.
Pełny tekst źródłaBui, Ngoc Thang, Thi My Tien Nguyen, Gebremedhin Yonatan Ataklti, Quoc Cuong Bui, Tran Thanh Nam Dinh, Duc Tri Phan, Sumin Park, Jaeyeop Choi, Thi Thu Ha Vu i Junghwan Oh. "Design of a High-Power Multilevel Sinusoidal Signal and High-Frequency Excitation Module Based on FPGA for HIFU Systems". Electronics 10, nr 11 (29.05.2021): 1299. http://dx.doi.org/10.3390/electronics10111299.
Pełny tekst źródłaCato, Sharon, Florent Aptel, Philippe Denis, Gail ter Haar, Shlomo Melamed, Eric Sellem, Tarek Shaarawy i David Wright. "Ultrasound Circular Cyclo-Coagulation – Innovation in Glaucoma with High Intensity Focused Ultrasound". European Ophthalmic Review 05, nr 02 (2011): 109. http://dx.doi.org/10.17925/eor.2011.05.02.109.
Pełny tekst źródłaSeo, Hyunkwan, Sung Kwan Hwang, Hee-Won Kim i Kyu Chan Lee. "Motion Accuracy of Pneumatic Stepper Motor-Driven Robotic System Developed for MRI-Guided High-Intensity Focused Ultrasound Treatment of Prostate Disease". Applied Bionics and Biomechanics 2024 (10.05.2024): 1–13. http://dx.doi.org/10.1155/2024/5556537.
Pełny tekst źródłaLim, Hae Gyun, Hyunhee Kim, Kyungmin Kim, Jeongwoo Park, Yeonggeun Kim, Jinhee Yoo, Dasom Heo, Jinhwan Baik, Sung-Min Park i Hyung Ham Kim. "Thermal Ablation and High-Resolution Imaging Using a Back-to-Back (BTB) Dual-Mode Ultrasonic Transducer: In Vivo Results". Sensors 21, nr 5 (24.02.2021): 1580. http://dx.doi.org/10.3390/s21051580.
Pełny tekst źródłaQian, Jun, Wei Xie, Xiao-Wei Zhou, Jian-Wen Tan, Zhi-Biao Wang, Yong-Hong Du i Yan-Hao Li. "Real-time monitoring of high intensity focused ultrasound focal damage based on transducer driving signal". Acta Physica Sinica 71, nr 3 (2022): 037201. http://dx.doi.org/10.7498/aps.71.20211443.
Pełny tekst źródłaAn, Chih Yu, Jia Hao Syu, Ching Shiow Tseng i Chih-Ju Chang. "An Ultrasound Imaging-Guided Robotic HIFU Ablation Experimental System and Accuracy Evaluations". Applied Bionics and Biomechanics 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/5868695.
Pełny tekst źródłaKaczkowski, Peter, i Juvenal Ormachea. "The verasonics platform for ultrasound-guided focused ultrasound preclinical studies". Journal of the Acoustical Society of America 153, nr 3_supplement (1.03.2023): A101. http://dx.doi.org/10.1121/10.0018303.
Pełny tekst źródłaRozprawy doktorskie na temat "HIFU transducer"
Gelat, P. N. "Focusing the field of a HIFU array transducer through human ribs". Thesis, University College London (University of London), 2014. http://discovery.ucl.ac.uk/1428445/.
Pełny tekst źródłaHARIHARAN, PRASANNA. "Free field characterization of High Intensity Focused Ultrasound (HIFU) transducers using acoustic streaming". University of Cincinnati / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1204570105.
Pełny tekst źródłaDasgupta, Subhashish. "Improved Characterization of the High Intensity Focused Ultrasound (HIFU) induced Thermal Field". University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1275936679.
Pełny tekst źródłaSanchez, Marine. "Développement d’un transducteur torique extracorporel et du principe de focalisation multi-torique en vue du traitement des adénocarcinomes mammaires par ultrasons focalisés de haute intensité". Electronic Thesis or Diss., Lyon, 2020. http://www.theses.fr/2020LYSE1243.
Pełny tekst źródłaHigh Intensity Focused Ultrasound (HIFU) is a technique commonly used in the medical field for the treatment of solid tumors. This therapeutic strategy allows for the localized destruction of biological tissue by temperature elevation. This manuscript describes the design and utilization of a therapeutic system and a novel, patented focalization technique for non-invasive treatment of mammary adenocarcinomas. In a first instance, an existing device that has been previously used for intraoperative treatment of hepatic metastases, and one that is currently undergoing clinical trials, was used. An ex vivo study on human mammary samples demonstrated the possibility of applying pressures on deep tissue layers in a non-invasive manner. Based on this study, the development of a new focalization modality was developed to provide larger treated volumes while yielding treatment times under a minute and eliminating the need for mechanical steering of the device. This new modality provided treated volumes 30% larger than those produced by the existing device with no changes to treatment time. Given the limitations of the existing device, in addition to the need of integrating the new focalization strategy, a new device was designed and specifically fabricated to meet the demands for treating mammary adenocarcinomas. The natural focalization of this novel transducer allows for depositing pressure deep in tissue. When the new focalization modality is used, a larger pressure field produces increased treated volumes. The performance provided by the novel probe was first characterized through modeling studies. These results were then validated through preliminary in vitro studies on hepatic tissues as well as in ex vivo studies on human mammary tissue samples. This work represents the first stage of development of a HIFU treatment for mammary adenocarcinomas using a novel, non-invasive and image-guided HIFU device that can be used manually
Vincenot, Jérémy. "Transducteurs toriques peropératoires et extracorporels destinés au traitement des tumeurs hépatiques et pancréatiques par ultrasons focalisés de haute intensité". Thesis, Lyon 1, 2013. http://www.theses.fr/2013LYO10161.
Pełny tekst źródłaHigh intensity focused ultrasound (HIFU) allows the destruction of biological tissue by temperature increase. This technique is commonly used in the medical world for treating certain types of tumor masses. The project described in this document details the development and use of two independent therapy systems, with the main objective to treat intraoperatively and extracorporeally liver tumors. As a first step, an existing surgical system, intended to treat liver metastases and under clinical evaluation, was used. The establishment of a treatment modality based on electronic focusing has contributed to increase the coagulation volume and thus simplify the operative procedure. Based upon the findings of this first study, a second version of intraoperative probe was modeled and developed. The geometry of this new transducer allowed to change the shape of produced ablations. The performance of this probe were evaluated numerically and then validated with in vitro and in vivo studies. The effectiveness, simplicity and reproducibility of the treatments performed in the liver led to a possible application of the device to pancreatic cancer. After numerical study and in vitro feasibility assessment, animal model validation was also undertaken. All the results obtained during the peroperative treatments was used to study the feasibility of an extracorporeal treatment. A theoretical study has led to the development of an experimental prototype. After calibration, preliminary in vitro results were obtained
Vincenot, Jérémy. "Transducteurs toriques peropératoires et extracorporels destinés au traitement des tumeurs hépatiques et pancréatiques par ultrasons focalisés de haute intensité". Electronic Thesis or Diss., Lyon 1, 2013. http://www.theses.fr/2013LYO10161.
Pełny tekst źródłaHigh intensity focused ultrasound (HIFU) allows the destruction of biological tissue by temperature increase. This technique is commonly used in the medical world for treating certain types of tumor masses. The project described in this document details the development and use of two independent therapy systems, with the main objective to treat intraoperatively and extracorporeally liver tumors. As a first step, an existing surgical system, intended to treat liver metastases and under clinical evaluation, was used. The establishment of a treatment modality based on electronic focusing has contributed to increase the coagulation volume and thus simplify the operative procedure. Based upon the findings of this first study, a second version of intraoperative probe was modeled and developed. The geometry of this new transducer allowed to change the shape of produced ablations. The performance of this probe were evaluated numerically and then validated with in vitro and in vivo studies. The effectiveness, simplicity and reproducibility of the treatments performed in the liver led to a possible application of the device to pancreatic cancer. After numerical study and in vitro feasibility assessment, animal model validation was also undertaken. All the results obtained during the peroperative treatments was used to study the feasibility of an extracorporeal treatment. A theoretical study has led to the development of an experimental prototype. After calibration, preliminary in vitro results were obtained
Cambronero, Sophie. "Développement d’un traitement non invasif des tumeurs hépatiques par ultrasons focalisés". Electronic Thesis or Diss., Lyon 1, 2022. http://www.theses.fr/2022LYO10234.
Pełny tekst źródłaHigh-intensity focused ultrasound (HIFU) is a non-invasive treatment modality for solid tumors that provides a localized destruction of deep tissues. The work in this manuscript describes the development of treatment strategies and the design of a toroidal HIFU transducer dedicated to the non-invasive treatment of liver tumors. First, an existing toroidal HIFU device designed for an intraoperative treatment of liver tumors was used to expand the prospects for intraoperative treatment of tumors localized at the hepato-caval confluence. This treatment approach was evaluated in a preclinical study and showed the feasibility of the procedure and the tolerance of the treatment. This same device was then used to evaluate the feasibility of a completely non-invasive HIFU treatment with a toroidal transducer. The feasibility and safety of this non-invasive treatment was demonstrated in a preclinical study in the porcine model. This work highlighted the need for personalized non-invasive HIFU treatments to spare healthy intermediate tissues. Based on these experiences, a new targeting system was developed to ensure an accurate targeting of non-invasive HIFU treatments performed near risky structures. The performance of the new system has been demonstrated on two in vivo protocols for the treatment of the TTTS (Twin to Twin Transfusion Syndrome) and bladder trigone tumors. A new HIFU treatment device was then designed and developed for the non-invasive treatment of liver tumors. The specific cut of this truncated toroidal transducer allows an enlargement of the treated volume without mechanical displacement of the transducer. The therapeutic performance of this device has been evaluated on in vitro and in vivo experiments in the porcine model. This work represents the first step of a non-invasive treatment of hepatic tumors with a toroidal HIFU transducer
Dibaji, Seyed Ahmad Reza. "Nonlinear Derating of High Intensity Therapeutic Ultrasound Beams using Decomposition of Gaussian Mode". University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1458900246.
Pełny tekst źródłaMasárová, Mária. "Evoluční návrh ultrazvukových operačních plánů". Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2021. http://www.nusl.cz/ntk/nusl-445547.
Pełny tekst źródłaWang, Xusheng. "Ultrasonic Generator for Surgical Applications and Non-invasive Cancer Treatment by High Intensity Focused Ultrasound". Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS052/document.
Pełny tekst źródłaHigh intensity focused ultrasound (HIFU) technology is now broadly used for cancer treatment, thanks to its non-invasive property. In a HIFU system, a phased array of ultrasonic transducers is utilized to generate a focused beam of ultrasound (1M~10MHz) into a small area of the cancer target within the body. Most HIFU systems are guided by magnetic resonance imaging (MRI) in nowadays. In this PhD study, a half-bridge class D power amplifier and an automatic impedance tuning system are proposed. Both the class D power amplifier and the auto-tuning system are compatible with MRI system. The proposed power amplifier is implemented by a printed circuit board (PCB) circuit with discrete components. According to the test results, it has a power efficiency of 82% designed for an output power of 3W at 1.25 MHz working frequency. The proposed automatic impedance tuning system has been designed in two versions: a PCB version and an integrated circuit (IC) version. Unlike the typical auto-impedance tuning networks, there is no need of microprogrammed control unit (MCU) or computer in the proposed design. Besides, without using bulky magnetic components, this auto-tuning system is completely compatible with MRI equipment. The PCB version was designed to verify the principle of the proposed automatic impedance tuning system, and it is also used to help the design of the integrated circuit. The PCB realization occupies a surface of 110cm². The test results confirmed the expected performance. The proposed auto-tuning system can perfectly cancel the imaginary impedance of the transducer, and it can also compensate the impedance drifting caused by unavoidable variations (temperature variation, technical dispersion, etc.). The IC design of the auto-tuning system is realized in a CMOS process (C35B4C3) provided by Austrian Micro Systems (AMS). The die area of the integrated circuit is only 0.42mm². This circuit design can provide a wide working frequency range while keeping a very low power consumption (137 mW). According to the simulation results, the power efficiency can be improved can up to 20% by using this auto-tuning circuit compared with that using the static tuning network
Części książek na temat "HIFU transducer"
García-López, Juan Carlos, Raquel Martínez-Valdez, Citlalli J. Trujillo-Romero, Arturo Vera i Lorenzo Leija. "Frequency Parametric Study for a HIFU Transducer Intended for Bone Tumor Treatment". W IFMBE Proceedings, 1253–60. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-30648-9_162.
Pełny tekst źródłaRybyanets, A. N., A. A. Naumenko, N. A. Shvetsova, V. A. Khokhlova, O. A. Sapozhnikov i A. E. Berkovich. "Theoretical Modeling and Experimental Study of HIFU Transducers and Acoustic Fields". W Springer Proceedings in Physics, 621–37. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-26324-3_44.
Pełny tekst źródłaStreszczenia konferencji na temat "HIFU transducer"
Park, Chan Yuk, Da Sol Kwon, Jin Ho Sung i Jong Seob Jeong. "High Intensity Focused Ultrasound Transducer Using Inversion Layer Technique for Ultrasound Therapy". W 2017 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/dmd2017-3369.
Pełny tekst źródłaJungsoon Kim, Moojoon Kim i Kanglyeol Ha. "HIFU transducer with controllable curvature". W 2013 IEEE International Ultrasonics Symposium (IUS). IEEE, 2013. http://dx.doi.org/10.1109/ultsym.2013.0290.
Pełny tekst źródłaRivens, Ian. "A Phased Strip Array HIFU Transducer". W THERAPEUTIC ULTRASOUND: 5th International Symposium on Therapeutic Ultrasound. AIP, 2006. http://dx.doi.org/10.1063/1.2205510.
Pełny tekst źródłaFleury, Gérard. "Safety Issues for HIFU Transducer Design". W 4TH INTERNATIONAL SYMPOSIUM ON THERAPEUTIC ULTRASOUND. AIP, 2005. http://dx.doi.org/10.1063/1.1901645.
Pełny tekst źródłaMelodelima, David, William A. N'Djin, Hubert Parmentier, Michel Rivoire i Jean-Yves Chapelon. "Toric HIFU Transducer for Large Thermal Ablation". W 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 2007. http://dx.doi.org/10.1109/iembs.2007.4352265.
Pełny tekst źródłaDibaji, Seyed Ahmad Reza, i Rupak K. Banerjee. "Influence of the Transducer Acoustic Power on Focal Location of the Beam During HIFU Ablation Procedure". W ASME 2012 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/sbc2012-80830.
Pełny tekst źródłaWong, Wai, Carlos Christoffersen, Samuel Pichardo i Laura Curiel. "An integrated ultrasound transducer driver for HIFU applications". W 2013 26th IEEE Canadian Conference on Electrical and Computer Engineering (CCECE). IEEE, 2013. http://dx.doi.org/10.1109/ccece.2013.6567791.
Pełny tekst źródłaHoward, Samuel M., i Claudio I. Zanelli. "HIFU Transducer Characterization Using a Robust Needle Hydrophone". W 6TH INTERNATIONAL SYMPOSIUM ON THERAPEUTIC ULTRASOUND. AIP, 2007. http://dx.doi.org/10.1063/1.2744244.
Pełny tekst źródłaChristoffersen, Carlos, Thinh Ngo, Ruiqi Song, Yushi Zhou, Samuel Pichardo i Laura Curiel. "Quasi Class-DE Driving of HIFU Transducer Arrays". W 2020 IEEE International Symposium on Circuits and Systems (ISCAS). IEEE, 2020. http://dx.doi.org/10.1109/iscas45731.2020.9180423.
Pełny tekst źródłaN’Djin, W. A., D. Melodelima, F. Schenone, M. Rivoire, J. Y. Chapelon, Kullervo Hynynen i Jacques Souquet. "Segmental liver resection assisted by HIFU: tissue precauterization using a toroidal-shaped HIFU transducer". W 9TH INTERNATIONAL SYMPOSIUM ON THERAPEUTIC ULTRASOUND: ISTU—2009. AIP, 2010. http://dx.doi.org/10.1063/1.3367204.
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