【摘要】 背景:传统影像学检查如X线透视和腹部平片对机械性肠梗阻的诊断价值有限,近年多层螺旋CT(MSCT)在机械性肠梗阻诊断中的应用日益广泛。目的:探讨MSCT在机械性肠梗阻诊断中的价值。方法:回顾性分析46例经手术和病理检查证实的机械性肠梗阻患者的MSCT资料。15例患者仅行MSCT,31例于MSCT后行多平面重建(MPR)或曲面重建(CPR),其中8例加行表面遮盖(SSD)重建、透明重建(ray sum)、CT仿真结肠镜(CTVC)。分析MSCT诊断机械性肠梗阻的准确率。结果:机械性肠梗阻的病因主要为肿瘤和肠黏连。MSCT的诊断敏感性为97.8%(45/46),定位和定性诊断准确率均为95.7%(44/46)。结论:MSCT轴位图像结合多种重建图像能有效判断机械性肠梗阻的病因,清晰显示梗阻部位和并发症,对临床诊断和治疗具有重要价值。更多还原

【Abstract】 Background:Conventional radiological techniques such as fluoroscopy and plain abdominal film examination have limited value in the diagnosis of mechanical intestinal obstruction.In recent years,multi-slice spiral CT (MSCT) has been increasingly applied in this field.Aims:To investigate the diagnostic value of MSCT in mechanical intestinal obstruction. Methods:MSCT images of 46 cases of mechanical intestinal obstruction confirmed by surgery and pathology were retrospectively analyzed.Fifteen patients had MSCT only.Multiplanar reconstruction (MPR) or curved planar reconstruction (CPR) were also performed in 31 cases,and additional shaded surface display (SSD),ray sum and CT virtual colonoscopy (CTVC) were performed in 8 cases.The accuracy rate of MSCT in the diagnosis of mechanical intestinal obstruction was analyzed.Results:The main causes of mechanical intestinal obstruction were tumor and adhesion.The sensitivity of MSCT for diagnosing mechanical intestinal obstruction was 97.8% (45/46) and the accuracy rate of MSCT in locating obstruction site and in etiological diagnosis were both 95.7% (44/46).Conclusions:Axial images combined with post-processing images of MSCT can demonstrate the etiology,location and complication of mechanical intestinal obstruction clearly,and are of great value for clinical diagnosis and treatment.更多还原