多层螺旋CT重组图像诊断肠梗阻移行带的价值

Value of multi-slice CT restructuring imaging in diagnosis of transition zone in bowel obstruction

目的探讨多层螺旋CT(MSCT)后处理技术对于肠梗阻移行带的诊断价值。方法 65例肠梗阻患者行全腹部MSCT扫描,比较常规横轴面图像及联合后处理技术在肠梗阻移行带的显示、部位及病因等方面的差异。结果 MSCT常规横断面图像、联合后处理图像均能显示肠梗阻,二者对于肠梗阻的定位符合率分别为95.38%、98.46%。移行带的显示率分别为76.92%、90.77%,差异有统计学意义(P<0.05)。病因诊断符合率分别为73.85%、87.69%,两者差异具有统计学意义(P<0.05),尤其对于粘连及疝所致肠梗阻。结论联合运用后处理技术在显示移行带及梗阻原因方面优于常规横轴面图像。

Objective To evaluate post-processing techniques of multi-slice CT （MSCT） in the diagnosis of transition zone in bowel obstruction. Methods 65 patients with bowel obstruction underwent abdominal MSCT scanning. Difference in the detection of transition zone, location and etiology of bowel obstruction were compared between the routine axial images and combination of post-processing techniques. Results The presence of bowel obstruction could be correctly diagnosed on both routine axial and post-processed images in all patients. The location of bowel obstruction were diagnosed in 95.38% and 98.46% of patients respectively. And detection of transition zone and underlying etiology of bowel obstruction were diagnosed in 76.92%, 90.77% and 73.85%, 87.69% of patients respectively, with statisticallysignificant differences （P〈0.05）. Conclusion Combination of routine axial images and post-processing techniques of MSCT are useful for evaluating the location and etiology of bowel obstruction which is superior to that of simple routine axia images.