PD-0185: Combining doses for external beam radiotherapy and a HDR brachytherapy boost ñ impact on metrics
نویسندگان
چکیده
منابع مشابه
Boost in radiotherapy: external beam sunset, brachytherapy sunrise
Radiobiological limitations for dose escalation in external radiotherapy are presented. Biological and clinical concept of brachytherapy boost to increase treatment efficacy is discussed, and different methods are compared. Oncentra Prostate 3D conformal real-time ultrasound-guided brachytherapy is presented as a solution for boost or sole therapy.
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a he optimal treatment for clinically localized prostate cancer remains controversial. For paients with low-risk prostate cancer (Stage T1c2a, Gleason score less than 7, prostate-specific ntigen [PSA] of 10.0 ng/mL), monotherapy with adical prostatectomy, three-dimensional conforal radiotherapy (3D-CRT), intensity-modulated T, or prostate brachytherapy results in similar iochemical relapse-free...
متن کاملExternal beam radiotherapy plus brachytherapy boost in treatment of anal canal carcinoma.
PURPOSE Radiotherapy has been the standard treatment of anal canal carcinoma for the last three decades. However, there are still many open questions such as optimal radiation technique, adequate boost dose or best chemotherapy regimen. Beside cure and local control, other important goals are sphincter salvage and avoidance of a permanent colostomy, i.e. morbidity minimization. MATERIAL AND M...
متن کاملPredictors of distant metastasis after combined HDR brachytherapy and external beam radiation for prostate cancer
PURPOSE To determine predictors of distant metastases (DM) in prostate cancer patients treated with high dose rate brachytherapy boost (HDR-B) and external beam radiation therapy (EBRT). MATERIAL AND METHODS From 1991 to 2002, 768 men with localized prostate cancer were treated with HDR-B and EBRT. The mean EBRT dose was 37.5 Gy (range: 30.6-45 Gy), and the HDR-B was 22 or 24 Gy delivered in ...
متن کاملRegistering prostate external beam radiotherapy with a boost from high-dose-rate brachytherapy: a comparative evaluation of deformable registration algorithms
BACKGROUND Registering CTs for patients receiving external beam radiotherapy (EBRT) with a boost dose from high-dose-rate brachytherapy (HDR) can be challenging due to considerable image discrepancies (e.g. rectal fillings, HDR needles, HDR artefacts and HDR rectal packing materials). This study is the first to comparatively evaluate image processing and registration methods used to register th...
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ژورنال
عنوان ژورنال: Radiotherapy and Oncology
سال: 2015
ISSN: 0167-8140
DOI: 10.1016/s0167-8140(15)40183-5