肠扭转的CT表现  

The CT signs of intestinal volvulus

作　　者：纪建松[1] 王祖飞[1] 徐兆龙[1] 吕桂坚[1] 徐民[1] 赵中伟[1] 苏金亮[1] 周利民[1] 

机构地区：[1]浙江省丽水市中心医院放射科

出　　处：《中华放射学杂志》2005年第11期1185-1187,共3页Chinese Journal of Radiology

摘　　要：目的提高螺旋CT诊断肠扭转的正确率。方法对9例术前CT明确诊断为肠扭转,并经手术证实病例的CT资料进行分析。主要重组方法有多平面重组法(MPR)及滑动薄层块最大强度投影法(STS-MIP)。结果9例肠扭转诊断均正确,主要征象有肠管的“漩涡征”(6例)和血管的“漩涡征”(9例)、“靶环征”(2例)、“鸟喙征”(6例)。结论肠系膜血管的“漩涡征”是诊断肠扭转的特异性征象,“靶环征”及肠壁强化减弱、腹水是提示绞窄性梗阻的可靠征象。螺旋CT扫描及重组对肠扭转的诊断具有重要价值。Objective To improve the accuracy rate of spiral CT diagnosing intestinal volvulus. Methods To analysis the CT findings of 9 cases of intestinal volvulus proved by operation, the main reconstruction techniques were multiplanar reformation （MPR） and sliding thin-slab maximum intensity projection （STS-MIP）. Results All the 9 cases were diagnosed accurately, the main signs were “whirlpool” of intestine （ 6 cases ） and vessels （ 9 cases ）, “target loop” （ 2 cases ）,“beak” （ 6 cases ）. Conclusion “Whirlpool” of vessels is a specific sign to diagnose intestinal volvulus, “target loop”, reduced enhancement of intestinal wall and ascites are the reliable signs to strangulated intestinal obstruction. Spiral CT and reconstructions have important value to diagnose the intestinal volvulus.

关 键 词：肠扭转 计算机辅助图像处理 体层摄影术 X线计算机 

分 类 号：R816.5[医药卫生—放射医学]