双源CT在肠系膜上静脉栓塞中的应用

Application of superior mesenteric vein embolization diagnosised by dual-source CT

目的探讨肠系膜上静脉栓塞的双源CT征象和临床表现,提高对本病的认识。方法回顾性分析18例肠系膜上静脉栓塞患者的双源CT平扫、增强图像及CT血管重建(CTA)后处理资料。结果 11例为血栓栓塞,7例为肿瘤栓塞。栓塞中3例平扫示肠系膜上静脉增粗,密度增高。增强后18例可见肠系膜上静脉内充盈缺损,经血管重建后处理技术,包括容积再现(VR)及最大密度投影(MIP)、曲面重组(CPR)18例患者均清晰显示栓子。6例可见肠壁增厚呈"靶征",1例见肠壁积气,7例见腹腔积液形成,5例见肠系膜周围脂肪间隙模糊。结论双源CT在肠系膜上静脉栓塞诊断中有重要的应用。

Objective To investigate dual-source CT signs and clinical manifestations Of superior mesenteric vein embolization, and to improve the understanding of this disease. Methods Enhanced images and CTA Post.processing data of eighteen patients with superior mesenteric vein embolization were analyzed retrospectively. Results Eleven cases were thromboembolism and 7 cases were tumor embolization. Three cases of plain scan superior mesenteric vein thickening, increased density. Eighteen cases could be seen clearly in the superior mesenteric vein filling defect, the vascular reconstruction post-processing technology,including volume rendering（VR） and maximal density projection （MIP） , surface reconstruction （CPR）. 6 cases could be seen thickening of the intestinal wall was ＂target＂, 1 case of intestinal wall gas, 7 cases of ascites, 5 cases of the blurry mesenteric fat gap. Conclusion DSCT has an important application in the diagnosis of superior mesenteric vein embolization.