MSCT图像后处理在肠梗阻诊断中的价值

目的：探讨MSCT后处理技术对于肠梗阻的诊断价值。方法：40例经手术证实的肠梗阻病例,行全腹部MSCT平扫及增强扫描,在工作站上采用多平面重组、MIP及VR方法进行图像后处理,观察肠梗阻的有无、部位、病因及有无合并肠缺血。结果：40例中,CT常规横断面图像、联合后处理图像均能显示了肠梗阻,单独根据常规横轴面图像能确定30例（75%）的梗阻部位、31例（77.5%）的梗阻原因及10例（83.3%）合并肠缺血,而联合后处理图像可以确定38例（95%）的梗阻部位、37例（92.5%）的梗阻原因及11例（91.6%）合并肠缺血,两种方法对梗阻部位、原因的诊断符合率差异具有统计学意义（P〈0.05）。结论：MSCT常规横轴面图像及后处理技术的联合应用在显示肠梗阻的部位、梗阻原因以及肠道血运状态方面优于单纯常规横轴面图像。

Value of Multi-slice CT and Post-processing Techniques in the Diagnosis of Bowel Obstruction

Objective:To evaluate multi-slice CT (MSCT) and post-processing techniques in the diagnosis of bowel obstruction.Methods:Forty cases with surgery proved bowel obstruction underwent plain and enhanced MSCT scanning of the entire abdomen.The multi-planar reformation (MPR) images of abdomen,maximum intensity projection (MIP) and volume rendering (VR) images of mesenteric vessels were reconstructed on workstation.The presence,location,etiology of bowel obstruction and complicated ischemia of bowel were evaluate...