نتایج جستجو برای: high dose rate hdr

تعداد نتایج: 2965461  

2014
Shalini Moningi Elwood P. Armour Stephanie A. Terezakis Jonathan E. Efron Susan L. Gearhart Trinity J. Bivalacqua Rachit Kumar Yi Le Sook Kien Ng Christopher L. Wolfgang Richard C. Zellars Susannah G. Ellsworth Nita Ahuja Joseph M. Herman

High-dose-rate intraoperative radiation therapy (HDR-IORT) has historically provided effective local control (LC) for patients with unresectable and recurrent tumors. However, IORT is limited to only a few specialized institutions and it can be difficult to initiate an HDR-IORT program. Herein, we provide a brief overview on how to initiate and implement an HDR-IORT program for a selected group...

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...

2012
Takashi Sugihara Hayato Murano Kimio Tanaka

BACKGROUND The molecular mechanisms of DNA repair following chronic medium-dose-rate (MDR) γ-ray-induced damage remain largely unknown. METHODOLOGY/PRINCIPAL FINDINGS We used a cell function imager to quantitatively measure the fluorescence intensity of γ-H2A.X foci in MDR (0.015 Gy/h and 0.06 Gy/h) or high-dose-rate (HDR) (54 Gy/h) γ-ray irradiated embryonic fibroblasts derived from DNA-depe...

2014
Hiromichi Ishiyama Takefumi Satoh Masashi Kitano Ken-ichi Tabata Shouko Komori Masaomi Ikeda Itaru Soda Shinji Kurosaka Akane Sekiguchi Masaki Kimura Shogo Kawakami Masatsugu Iwamura Kazushige Hayakawa

The purpose of this study was to report the outcomes of high-dose-rate (HDR) brachytherapy and hypofractionated external beam radiotherapy (EBRT) combined with long-term androgen deprivation therapy (ADT) for National Comprehensive Cancer Network (NCCN) criteria-defined high-risk (HR) and very high-risk (VHR) prostate cancer. Data from 178 HR (n = 96, 54%) and VHR (n = 82, 46%) prostate cancer ...

2013
William M. Rockey Sudershan K. Bhatia Geraldine M. Jacobson Yusung Kim

PURPOSE We perform a clinical retrospective study to determine whether a vaginal balloon-packing system provides a dosimetric reduction to organs at risk (OARs) versus traditional gauze packing for gynecological high-dose-rate brachytherapy (HDR-BT). We also test various balloon filling materials for optimizing imaging quality. MATERIAL AND METHODS Filling materials for balloon-packing were e...

Journal: :Orvosi Hetilap 2021

Összefoglaló. A szájüregi daganatok kuratív kezelésében az elsődlegesen választandó műtét mellett a sugárterápiának is jelentős szerepe van. lokális tumormentesség biztosításához azonban dóziseszkaláció szükséges. Ennek külső besugárzással való megvalósítása környező normálszövetek fölösleges dózisterhelésével és ebből következő mellékhatások előfordulásának emelkedésével jár. brachytherapia (B...

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