肠扭转的影像学表现和MSCT诊断价值

Imaging Findings of Volvulus and Diagnostic Value of MSCT

目的探讨肠扭转的影像学表现和多层螺旋CT(MSCT)诊断肠扭转的价值。方法分析12例肠扭转病例的影像学特点。主要重组方法为多平面重组(MPR)、最大密度投影(M IP)及容积再现(VR)。结果 12例中,腹部平片腹部肠管表现为"8字征"、"香蕉征"等影像特征10例,"无气腹"或"少气腹"征象2例,"空回肠换位征"1例。CT扫描"漩涡征"12例,"鸟嘴征"11例,其中腹水及肠系膜周围渗出征象3例。结论 MSCT对肠扭转的诊断和评估扭转肠管的血运情况具有重要价值。

[Objective]To discuss the imaging findings of volvulus and the diagnostic value of multi-slice spiral CT（MSCT） in volvulus.[Methods]The imaging features of 12 cases of volvulus were analyzed.The main reconstruction methods included multi-planar reconstruction（MPR）,maximum intensity projection（MIP） and volume rendering（VR）.[Results]By the plain abdominal radiographs,intestine of 10 patients showed ＂8＂ sign and banana sign,2 patients showed gasless abdomen or less gas abdomen,and one case had jejunum-ileum transposition sign.CT showed that there were 12 cases of swirl sign,11 cases of beak sign and 3 cases of ascites and mesenteric exudation.[Conclusion]MSCT has the important value in diagnosis of volvulus and evaluation of blood circulation of torsional intestine.