Abstract: [Abstract] Objective To evaluate the value of CT in diagnosis of rare mechanical small-bowel obstruction (SBO) caused by intraluminal foreign bodies. Methods The CT imaging features of 8 patients with mechanical SBOs caused by intraluminal foreign bodies were reviewed retrospectively. Results The presence of mechanical SBOs in 7 cases were diagnosed by CT imaging before operation, including the ingested foreign bodies in 3 cases, bezoars in 2 cases and gallstones in 2 cases. Another one was misdiagnosed the bezoars as tumor. All cases were confirmed by open abdomen operation. SBO-related complications such as ischemia and perforation were not found in all patients. Conclusion CT examination are effective for diagnosis of mechanical small-bowel obstruction (SBO) caused by intraluminal foreign bodies by the typical CT signs.

Key words: Small-bowel obstruction, Foreign bodies, Tomography, X-ray computed

摘要： 【摘要】 目的 探讨CT对肠腔内异物所致机械性小肠梗阻诊断的价值。 资料与方法 回顾性分析8例经手术证实的肠腔内异物所致机械性小肠梗阻的CT表现。 结果 8例患者均有程度不等的肠梗阻，术前均能正确诊断肠梗阻。其中，小肠食入性异物小肠梗阻3例，粪石性小肠梗阻 3例，胆石性小肠梗阻 2例，均无肠缺血坏死、穿孔等并发症。 结论 通过典型的征象分析，CT能术前诊断肠腔内异物所致机械性小肠梗阻。

关键词: 【关键词】小肠梗阻, 异物, 体层摄影术, X线计算机