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26 天
做一次CT检查,辐射到底有多大?一年最多能做几次?
胸部或腹部CT平扫:辐射剂量会稍高一些,大约在6mSv至20mSv之间,但依旧处于安全范围之内。 增强CT:由于需要在检查后进行多期扫描,辐射剂量会比普通平扫略高,但通常不会超过20mSv。 值得一提的是,随着CT技术的不断进步,现代CT机在降低辐射剂量方面取得 ...
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