基于一套呼吸门控制系统的四位成像(英文)

• 作 者: 贺鹏博 Li Qiang
• 出 处: IMP & HIRFL Annual Report
• 发表日期: 2004年期
• 关键词: 呼吸门控 radiotherapy compensate attempt obstacle gating spare hence irradiated conc

Modern radiotherapy aims to concentrate the dose to a tumor and to spare the normal tissue around as much as possible.However,organ motion poses a severe obstacle and leads to increased safety margins around the clinical target volume,hence increasing the volume of the irradiated normal tissue.A wellknown example is the treatment of lung tumors,which may show respiratory motion of up to several centimeters.Adaptive radiotherapy techniques attempt to compensate such organ motion e.g.by gating on a

Modern radiotherapy aims to concentrate the dose to a tumor and to spare the normal tissue around as much as possible. However, organ motion poses a severe obstacle and leads to increased safety margins around the clinical target volume, hence increasing the volume of the irradiated normal tissue. A wellknown example is the treatment of lung tumors, which may show respiratory motion of up to several centimeters. Adaptive radiotherapy techniques attempt to compensate such organ motion egby gating on a