非增强螺旋CT扫描对急性阑尾炎的诊断价值

被引:59
作者
周根泉
何之彦
刘爱群
李征宇
张悦萍
张贵祥
缪竞陶
机构
[1] 上海交通大学附属第一人民医院放射科
关键词
阑尾; 阑尾炎; 体层摄影术,X线计算机; 螺旋CT;
D O I
10.13437/j.cnki.jcr.2003.09.014
中图分类号
R816.5 [腹部及消化系];
学科分类号
摘要
目的 评价非增强螺旋CT扫描对急性阑尾炎的诊断价值。资料与方法 对 115例临床怀疑急性阑尾炎患者作非增强螺旋CT扫描 ,不口服或结肠内灌注对比剂 ,层厚 10mm ,Pitch 1,扫描范围从L3 椎体至耻骨联合。CT诊断急性阑尾炎的标准包括阑尾增粗横径超过 6mm ,或阑尾结石同时伴有阑尾周围的炎性改变。CT诊断结果与手术、病理或临床随访结果进行对照。结果 CT发现 5 6例真阳性 ,49例真阴性 ,7例假阴性和 3例假阳性。CT诊断急性阑尾炎的敏感性为 89%,特异性为 94%,准确性为 91%,阳性预测值为 95 %,阴性预测值为 88%。 49例无阑尾炎患者中 ,CT发现其他病变 2 2例 (45 %)。结论 非增强螺旋CT扫描 ,能快速、准确地诊断有无急性阑尾炎 ,而且还能发现除阑尾炎以外的其他各种病变。
引用
收藏
页码:758 / 760
页数:3
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