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根据既要达到诊断目的,又要把辐射限制到可以合理达到的最低水平的放射防护原则[1 ] ,笔者对比分析了36例常规及低剂量婴幼儿颅脑CT扫描的成像质量及单次扫描的CT剂量加权指数(CTDIW ) ,探讨低剂量扫描技术在婴幼儿颅脑部病变检查中的辐射防护作用。一、资料和方法对怀疑颅脑病
According to both to reach the diagnostic purpose, but also to limit the radiation can reach the lowest level of reasonable principles of radioprotection [1], the author compared 36 cases of conventional and low-dose infant brain CT imaging quality and scan a single scan CT dose weighted index (CTDIW), to explore the low-dose scanning technology in infant brain lesion examination of radiation protection. First, the data and methods of suspected craniocerebral disease