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鼻窦部常见病变低剂量CT扫描的应用价值 被引量:2

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摘要 目的探讨低剂量鼻窦部常见病变CT扫描的应用价值。方法60例鼻窦常见病变患者分成三组,分别行不同低剂量10mA、20mA、50mACT扫描,并对每例患者选取上颌窦中部,同时显示筛窦、上颌窦及中、下鼻甲的层面行常规剂量(160mA)扫描,并对三种扫描模式的图象进行质量评估。结果当扫描mA值由160mA减至50mA时,对两种扫描剂量所得CT图象质量评估后行配对t检验,显示两种扫描方法所得图象质量差别无统计学意义(P>0.05),而10mA组,20mA组图象质量较差,达不到诊断要求,分别与160mA组所得CT图象行配对t检验,差别显著,具有统计学意义(P<0.01)。结论鼻窦常见病变CT扫描用50mA低剂量能够满足临床诊断要求。
出处 《中国辐射卫生》 北大核心 2008年第3期360-361,共2页 Chinese Journal of Radiological Health
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