MSCT血管成像对胃左动脉起源变异的分型  

MSCT angiography in typing variations in origins of left gastric artery

作　　者：程诚[1] 张春来[1] 唐双玥[1] 旷连勤[1] 李良育 金波 王毅[1] 

机构地区：[1]第三军医大学大坪医院野战外科研究所放射科,重庆400042

出　　处：《中国介入影像与治疗学》2017年第10期627-631,共5页Chinese Journal of Interventional Imaging and Therapy

摘　　要：目的采用MSCT血管成像探讨胃左动脉(LGA)起源变异的类型。方法回顾性分析1 500例腹部MSCT血管成像资料,入选者腹主动脉、腹腔干、LGA、肝总动脉(CHA)、脾动脉(SA)及肠系膜上动脉(SMA)均显示清晰。观察LGA及相关动脉的起源,建立新的分型方法(Ⅰ~Ⅹ型),并统计各种类型的发生率。结果1 500例患者中,1 342例(1 342/1 500,89.47%)LGA属正常起源(Ⅰ型),70例(70/1 500,4.67%)存在8种不同类型的LGA起源变异,47例(47/1 500,3.13%)LGA起源变异合并腹腔干-肠系膜上动脉共干(CMT)。LGA起源变异中,最常见的类型为LGA起源于腹主动脉合并CMT(Ⅴ型),共24例(24/1 500,1.60%);LGA、CHA、SA、SMA分别独立起源于腹主动脉(Ⅵ型)最少见,仅3例(3/1 500,0.20%)。本组1 500例中未发现LGA起源于SMA(Ⅶ型)者。结论 LGA存在广泛的起源变异,新的分型方法有助于全面、深入认识LGA起源变异的解剖学特征和影像学表现。Objective To explore the types of variations in the origin of left gastric artery （LGA） using MSCT angiography. Methods The abdominal MSCT angiography data of 1 500 patients were respectively reviewed, in thoses the abdominal aorta, celiac trunk, LGA, common hepatic artery （CHA）, splenic artery （SA） and superior mesenteric artery （SMA） were shown clearly. The origins of the LGA and related artries were focused. A new typing method （types I -X ） was established. And the incidence of various types was calculated. Results The normal anatomical origin （type I ） of LGA was noted in 1 342 cases （1 342/1 500, 89.47%）. Eight types of LGA variant origin were identified in 70 cases （70/1 500, 4. 67 %）. LGA variant origin combined with celiomesenteric trunk （CMT） were observed in 47 cases （47/1 500, 3.13 %） . The most common type of LGA origin variation was LGA originated from the abdominal aorta combined with CMT （type Ⅴ） which was found in 24 cases （24/1 500, 1.60%）. And the least common type was the namely LGA, SA, CHA and SMA arose independently from abdominal aorta （type Ⅵ） which was found in 3 cases （3/1 500, 0.20%）. LGA originated from SMA （type Ⅶ） was not found in all 1 500 cases. Conclusion There are many kinds of variations in the origin of LGA. The new typing method can contribute the comprehensive and intensive data for understanding the anatomical and radiographic features.

关 键 词：胃左动脉 起源 变异 分型 体层摄影术 X线计算机 血管造影术 

分 类 号：R543.5[医药卫生—心血管疾病] R816.2[医药卫生—内科学]