肠系膜上动脉血栓形成的CT诊断价值探讨

Study on value of CT in diagnosing superior mesenteric artery thrombosis

目的探讨CT对肠系膜上动脉血栓形成(SMAT)诊断的实际应用价值。方法回顾性分析经手术或临床证实的23例SMAT患者的临床资料及CT表现。结果 SMAT的主要CT表现包括肠系膜上动脉(SMA)内不规则充盈缺损23例,肠系膜上动脉(SMA)增粗13例,肠壁增厚11例,其中7例增强后呈靶环样强化,肠壁变薄3例,腹腔积液3例。仅SMA主干受累11例,仅2～3级分支受累5例,主干及分支同时受累7例。结论 CT及重建技术能对SMAT作出快速、准确诊断。

Objective To study the application value of CT in diagnosing superior mesenteric artery thrombosis（SMAT）.Methods The retrospective analysis was conducted on the clinical information and CT findings of 23 cases with SMAT verified by operation and/or clinical follow-up observation.Results The main CT signs of SMAT included irregular filling defects in 23 cases,increasing diameter of SMA in 13 cases,bowel wall thickening in 11 cases,target-ring appearance enhancement in 7 cases,bowel wall thining in 3 cases and ascites in 3 cases.Trunks of SMA were involved in 11 cases,class 2-3 branches of SMA were involved in 5 cases,both trunks and branches of SMA were simultaneously involved in 7 cases.Conclusion The CT and reconstruction technique can diagnose SMAT rapidly and accurately.