腹内疝的螺旋CT诊断

目的探讨螺旋CT对腹内疝的诊断价值。方法对7例CT诊断为腹内疝，并经手术证实的病例资料进行回顾性分析，CT检查采用平扫及双期增强，并进行了容积再现（VR）重组后任意切割、多平面重组（MPR）及最大密度投影（MIP）处理。结果7例腹内疝中，5例有腹部手术史，7例均表现为肠梗阻，其中4例合并小肠扭转显示肠管和血管的“漩涡征”，2例出现肠绞窄，表现为肠管强化减弱、肠壁水肿、腹腔积液；5例显示疝口，并有肠聚集、移位、肠系膜血管走形异常。结论螺旋CT增强扫描和多种方法重组对腹内疝具有重要的诊断价值。

The Helical CT Diagnosis of Internal Abdominal Hernia.

Objective To study the diagnostic value of helical CT on internal abdominal hernia. Methods The CT imaging findings of 7 cases of internal abdominal hernia which had been proved by operations were reviewed retrospectively. CT image examination was per- formed by the plan and double strengthening scan and Volume rendering （VR）, Multi -planar reformation （MPR） and Maximum intensity Projection （MIP） were adopted. Results Among the 7 cases of internal abdominal hernia, there were 5 cases with abdominal surgery histo- ries. Intestinal obstructions were found in all of the 7 cases and volvulus were showed in 4 cases, which manifested the whirlpool - like sign of intestine and vessel. Otherwise, intestinal strangulation was found in 2 cases with reduced enhancement and edema of intestine wall and ascites. Orificium hernialis was observed in 5 cases which showed bowel clustering and displacement, changes of mesentery vessel. Conclusion The enhanced helical CT scan and multi -image reconstruction method have much important value in diagnosing internal abdominal hernia.