OC-0358: Evaluation of the Advanced Collapsed-cone Engine dose calculation algorithm for COMS eye plaques
نویسندگان
چکیده
منابع مشابه
Optimization of the computational efficiency of a 3D, collapsed cone dose calculation algorithm for brachytherapy.
Brachytherapy dose calculations based on point kernel superposition using the collapsed cone method have been shown to accurately model the influence from finite dimensions of the patient and effects from heterogeneities including those of high atomic numbers. The collapsed cone method is for brachytherapy applications most effectively implemented through a successive-scattering approach, in wh...
متن کاملImproved treatment planning for COMS eye plaques.
PURPOSE A recent reanalysis of the Collaborative Ocular Melanoma Study (COMS) medium tumor trial concluded that incorporating factors to account for anisotropy, line source approximation, the gold plaque, and attenuation in the Silastic seed carrier into the dose calculations resulted in a significant and consistent reduction of calculated doses to structures of interest within the eye. The aut...
متن کاملMonte Carlo Simulation for Treatment Planning Optimization of the COMS and USC Eye Plaques Using the MCNP4C Code
Introduction: Ophthalmic plaque radiotherapy using I-125 radioactive seeds in removable episcleral plaques is often used in management of ophthalmic tumors. Radioactive seeds are fixed in a gold bowl-shaped plaque and the plaque is sutured to the scleral surface corresponding to the base of the intraocular tumor. This treatment allows for a localized radiation dose delivery to the tumor with a ...
متن کاملExperimental verification of Advanced Collapsed‐cone Engine for use with a multichannel vaginal cylinder applicator
Model-based dose calculation algorithms have recently been incorporated into brachytherapy treatment planning systems, and their introduction requires critical evaluation before clinical implementation. Here, we present an experimental evaluation of Oncentra® Brachy Advanced Collapsed-cone Engine (ACE) for a multichannel vaginal cylinder (MCVC) applicator using radiochromic film. A uniform dose...
متن کاملCalculation of absorbed dose in lung tissue equivalent and compared it with prediction of a treatment planning system using Collapsed Cone Convolution algorithm
External radiotherapy is used for treatment of various types of cancers. Due to the impossibility of measuring the absorbed dose delivered to different organs during irradiation, treatment planning systems (TPSs) have been utilized for calculation of absorbed dose before a radiotherapy procedure. Thus, the accuracy and precession of the TPS is essential.The aim of this study is investigation of...
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ژورنال
عنوان ژورنال: Radiotherapy and Oncology
سال: 2017
ISSN: 0167-8140
DOI: 10.1016/s0167-8140(17)30800-9