نتایج جستجو برای: dosimetric characteristics beam shaper applicator conventional applicator

تعداد نتایج: 1010248  

2017
Bikramjit Chakrabarti Somapriya Basu-Roy Sanjay Kumar Kar Sounik Das Annesha Lahiri

Purpose This study is intended to compare dose-volume parameters evaluated using different forward planning- optimization techniques, involving two applicator systems in intracavitary brachytherapy for cervical cancer. It looks for the best applicator-optimization combination to fulfill recommended dose-volume objectives in different high-dose-rate (HDR) fractionation schedules. Material and ...

2005
Slobodan Devic Té Vuong Belal Moftah

High-dose rate endorectal brachytherapy (HDR-EBT) is mainly used as a palliative treatment modality. In this paper, we compare dosimetry distributions for a single-channel catheter (Miami) applicator with distributions of the inflatable multichannel (Novi Sad) endorectal applicator. The comparisons were made with respect to dose coverage to the clinical tumor volume as well as to the bladder, r...

2016
Emily Flower Kathy Ngoc Tran Salman Zanjani Wayne Smith Jonathan Karpelowsky Katie Summerhayes Edgar Estoesta Jennifer Chard

PURPOSE To report peri-operative fractionated high-dose-rate (HDR) brachytherapy with a 3D customized Freiburg flap applicator to treat locally recurrent Wilms' tumor, followed by immediate hyperthermic intraperitoneal chemotherapy for a 16-year-old with a second recurrence of nephroblastoma (Wilms' tumor). MATERIAL AND METHODS The tumor was excised and surgical bed was treated with fractiona...

Journal: :Thermal Medicine(Japanese Journal of Hyperthermic Oncology) 1986

2009
Jaroslav Vorlíček Jan Rusz

This article deals with the design and construction of the microwave applicator with transversal electro-magnetic (TEM) wave, which is filled by distilled water. We have constructed an applicator that works on the frequency f = 434MHz with aperture size of 100mm x 75mm. The applicator is made of the copper. Design of dimensions of the applicator and simulation of the specific absorption rate (S...

Journal: :Journal of radiation research 2012
Ken Yoshida Mari Ueda Tadashi Takenaka Hideya Yamazaki Tadayuki Kotsuma Kazumasa Aramoto Shunsuke Miyake Yukihiro Koretsune Chiaki Ban Eiichi Tanaka

We investigated daily needle applicator displacement during multifractionated high-dose-rate interstitial brachytherapy (HDR-ISBT) for postoperative recurrent uterine cancer. Eight patients with postoperative recurrent uterine cancer received HDR-ISBT with or without external beam radiotherapy using our unique ambulatory technique. To analyze displacement, we obtained daily computed tomography ...

Journal: :International Journal of Radiation Oncology*Biology*Physics 2020

2015
Marcus Beck Pirus Ghadjar Mirko Weihrauch Susen Burock Volker Budach Jacek Nadobny Jalid Sehouli Peter Wust

BACKGROUND Peritoneal carcinomatosis occurs in different cancer subtypes and is associated with a dismal prognosis. Some doubts remain whether the whole abdomen can be treated by regional hyperthermia, therefore we analyzed feasibility conducting a pilot study. METHODS A simulation of the abdominopelvic heat distribution in 11 patients with peritoneal carcinomatosis was done using the HyperPl...

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