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规范腹部CT检查保证诊断质量 被引量:10

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摘要 随着CT机的广泛普及,CT检查已成为腹部疾病临床诊断最为重要的常规检查手段。从理论上,CT扫描的层厚越薄、图像清晰度越高、越好,这2个目标的实现是以增加X线的剂量为代价的;而且层厚越薄信噪比越差,当层厚减少到一定程度后与诊断质量的提高并不呈正相关,甚至可能不再有意义。一味地追求薄层、高清晰,会造成患者接受过多不必要的X线剂量。
作者 章士正
出处 《中华放射学杂志》 CAS CSCD 北大核心 2007年第9期898-899,共2页 Chinese Journal of Radiology
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参考文献4

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二级参考文献30

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