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多层螺旋CT多模态检查在急性阑尾炎诊断中的价值

Xichang Wang,Yaojun Shi,Lihua Zhang,Yang Li, Qiang Zhang, Jianming Hu

Journal of Imaging Research and Medical Applications(2019)

Cited 3|Views6
Abstract
目的:评价多层螺旋C T多模态检查在急性阑尾炎诊断中的价值.方法:回顾分析65例临床疑诊断为急性阑尾炎而行多层螺旋C T检查,多平面重建(M P R)及曲面重建(C P R),28例C T增强扫描,采用10m m层厚、层距,一次屏气行全腹CT扫描,重建用2.5mm层厚,1.25mm间隔,重叠50%,获得轴面源像(ASI),将ASI像传输至图像后处理工作站,完整地显示阑尾,观察、测量和比较多层螺旋C T平扫与增强扫描在诊断A A方面的价值.结果:在65例诊断为AA中,平扫+增强+重建,阑尾成像成功率为100%;其中平扫+重建能诊断AA 37例,平扫+增强+重建诊断AA 28例;37例中真阳性26例,真阴性11例;28例中真阳性19例,真阴性9例,多模态扫描诊断A A的敏感性88%,准确率为90%,特异性为94%,20例无阑尾炎患者中,CT发现其他病变7例(35%).结论:多模态螺旋CT检查,能快速、准确的诊断有无急性阑尾炎,并可对阑尾脓肿、炎性包块、回盲部肿瘤及阑尾炎以外的其他病变进行鉴别,更好的指导临床医师.
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