نتایج جستجو برای: compensator based intensity modulated radiation therapy

تعداد نتایج: 3808500  

Journal: :International journal of radiation oncology, biology, physics 2011
Alexei Trofimov Paul L Nguyen Jason A Efstathiou Yi Wang Hsiao-Ming Lu Martijn Engelsman Scott Merrick Chee-Wai Cheng James R Wong Anthony L Zietman

PURPOSE To quantify daily variations in the anatomy of patients undergoing radiation therapy for prostate carcinoma, to estimate their effect on dose distribution, and to evaluate the effectiveness of current standard planning and setup approaches employed in proton therapy. METHODS We used series of computed tomography data, which included the pretreatment scan, and between 21 and 43 in-room...

2017
Shan Deng Xu Liu Heming Lu Huixian Huang Liuyang Shu Hailan Jiang Jinjian Cheng Luxing Peng Qiang Pang Junzhao Gu Jian Qin Zhiping Lu Ying Mo Danling Wu Yinglin Wei

Patients with nasopharyngeal carcinoma undergoing intensity-modulated radiation therapy may experience significant anatomic changes throughout the entire treatment course, and adaptive radiation therapy may be necessary to maintain optimal dose delivered both to the targets and to the critical structures. The timing of adaptive radiation therapy, however, is largely unknown. This study was to e...

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