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作 者:胡丽[1] 杨涛[2] 余刚[1] 黄艳艳[1] 顾静华[2]
机构地区:[1]十堰市太和医院(湖北医药学院附属医院)医学影像中心,湖北十堰442000 [2]上海健康医学院附属周浦医院影像科,上海201318
出 处:《CT理论与应用研究(中英文)》2016年第3期377-384,共8页Computerized Tomography Theory and Applications
摘 要:目的:探讨乙状结肠扭转(SV)的多层螺旋CT(MSCT)表现,以提高SV术前诊断水平。方法:回顾性分析手术病理或肠镜复位证实的15例乙状结肠扭转MSCT表现,归纳其影像学特征。结果:15例SV的MSCT征象有:15例均显示乙状结肠扩张,4例提示有肠管损害,包括肠壁增厚、肠系膜水肿、系膜间渗出和腹腔积液等;CT定位像显示倒"U"征14例,横断面图像显示"圆腹"征13例,"鸟嘴"征11例,MPR显示"交叉"征10例,"漩涡"征9例;CT增强及CTA显示肠壁强化减弱3例,肠系膜小血管闭塞1例,肠系膜动脉旋转2例。结论:乙状结肠扭转的MSCT表现具有一定特征性,尤其是肠管损害的判断对指导临床治疗有较大价值。Objective:To discuss the imaging characteristics of sigmoid volvulus(SV)with multi-slice spiral computed tomography (MSCT) and improve the level of preoperative diagnosis in patients of SV.Methods:MSCT examinations were performed in 15 caseswith sigmoid volvulus proved by pathology or colonoscope reposition, and the CT imaging characteristics were analyzed and summarized retrospectively. Results:The MSCT signs of 15 cases of SV includedall 15 cases had sigmoid dilated,4 cases showed intestinal damage (bowel wall thickening,mesenteric edema,mesenterium effusion and ascites etc.). 14 cases with invertedU-shape were showed on scanogram scanning,13 cases of round belly sign, 11 cases ofbeak sign on cross-section scanning. MPR showed 10 cases of cross sign and 9 cases of whirl sign; Contrast-enhanced CT and CTA showed the enhancement of bowel wall weakened in 3 cases, 1 case ofsmall vessel occlusion of mesentery, 2 cases of mesenteric artery rotation.Conclusion:The MSCT features of SV had some characteristics,especiallyhad a great value in guideline for clinical therapy in the estimate of intestinal damage.
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