论文部分内容阅读
目的减少眼睛所受辐射剂量的3种方法:铋屏蔽、基于器官的管电流调制和管电流减少,比较头部CT扫描时其射线剂量和影像质量。材料与方法拟人化仿真头部在6种条件下扫描:(1)没有任何剂量减少的技术(参考扫描);
OBJECTIVE Three methods for reducing the radiation dose to the eye: bismuth shielding, organ-based tube current modulation and tube current reduction, and comparing the dose and image quality of the head CT scan. Materials and Methods Anthropomorphic Emulation The head was scanned under six conditions: (1) no dose reduction technique (reference scan);