【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。更多还原

【Abstract】 Objective To improve the ac cu racy rate of spiral CT diagnosing intestinal volvulus. Methods To analysis the CT findings of 9 cases of intestinal volvulus proved by o peration, the main reconstruction techniques were multiplanar reformation (MPR) and sliding thin-slab maximum intensity projection (STS-MIP). Re sults All the 9 cases were diagnosed accurately, the main signs were “whirlpool” of intestine (6 cases) and vessels(9 cases),“target loop”(2 ca ses)、“beak”(6 cases). Conclusion “Whirlpool” of vess els is a specific sign to diagnose intestinal volvulus, “target loop”, reduce d enhancement of intestinal wall and ascites are the reliable signs to strangula ted intestinal obstruction. Spiral CT and reconstructions have important value t o diagnose the intestinal volvulus.更多还原