医学
基准标记
磁共振成像
直线粒子加速器
食管
医学影像学
核医学
影像引导放射治疗
放射治疗
放射科
医学物理学
梁(结构)
光学
外科
物理
作者
J J W Lagendijk,B W Raaymakers,Marco van Vulpen
标识
DOI:10.1016/j.semradonc.2014.02.009
摘要
The current image-guided radiotherapy systems are suboptimal in the esophagus, pancreas, kidney, rectum, lymph node, etc. These locations in the body are not easily accessible for fiducials and cannot be visualized sufficiently on cone-beam computed tomographies, making daily patient set-up prone to geometrical uncertainties and hinder dose optimization. Additional interfraction and intrafraction uncertainties for those locations arise from motion with breathing and organ filling. To allow real-time imaging of all patient tumor locations at the actual treatment position a fully integrated 1.5-T, diagnostic quality, magnetic resonance imaging with a 6-MV linear accelerator is presented. This system must enable detailed dose painting at all body locations.
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