MSCT对后天性腹内疝的诊断价值

Diagnosis of internal abdominal hernia acquired using MSCT

目的:探讨MSCT对后天性腹内疝的诊断及鉴别诊断价值。方法:回顾性分析经手术证实的16例后天性腹内疝的MSCT资料,CT检查采用平扫及双期增强扫描,并行MPR观察。结果:16例均表现为肠梗阻,其中13例有腹部手术史。14例CT表现为肠襻聚集伴扩张积液,具有占位效应;疝内肠系膜血管移位、伸拉,向疝口纠集,呈"梳征"或"缆绳征"。2例CT表现为空肠移位,呈"C"型,肠管积液、稍扩张,肠壁无明显水肿增厚。CT增强扫描7例肠壁及系膜强化程度减弱。结论:MSCT及其后处理技术对后天性腹内疝具有重要的诊断价值。

Objective:To study the value of MSCT in the diagnosis of internal abdominal hernia acquired.Methods:The CT imaging findings of 16 cases of internal abdominal hernia acquired,which had been proved by operations,were reviewed retrospectively.CT plain and dual enhanced scanning were performed.Post-processing reconstruction technology such as MPR was used for analysis.Results:16 cases of internal abdominal hernia acquired all showed intestinal obstruction,including 13 cases with a history of abdominal surgery.These CT features of 14 cases included clustered dilated bowel loops with mass effect,the“comb sign”and“cable sign”(displacement and distortion of mesentery vessel),the“target sign”(thickened bowel wall)and poor enhancement of the ischemia bowel wall.Other 2 cases showed“C sign”(dislocated and dilated jejunum).Conclusion:MSCT and post-processing reconstruction method can play an important role in the diagnosing of internal abdominal hernia acquired.