256层螺旋CT对脊髓前大根动脉解剖位置的显示研究  

Demonstration of Adamkiewicz artery with the 256-slice CT angiography

作　　者：谷连元[1] 高思佳[1] 曹际斌[1] 蒋旭远[1] 白璐娜[1] 付强[1] 袁逍[2] 李燕燕[2] 

机构地区：[1]中国医科大学附属第一医院放射科,辽宁沈阳110001 [2]第四军医大学唐都医院放射科,陕西西安710038

出　　处：《解剖科学进展》2013年第2期138-141,共4页Progress of Anatomical Sciences

基　　金：辽宁省科学技术厅基金(2010225034);辽宁省教育厅基金(L20100696)资助项目

摘　　要：目的探讨256层螺旋CT对脊髓前大根动脉(the Adamkiewicz artery,AKA)解剖位置的显示情况。方法本院72例行脊髓动脉CTA造影患者,通过多平面重组(MPR)、曲面重组(CPR)、容积显示(VR)、最大密度投影(MIP)等后处理方法寻找前大根动脉,并根据在解剖上的连续性和图像质量对其显示情况进行分级。结果前大根动脉作为脊髓的主要供血动脉,走行在左侧椎间孔者占74.0%,右侧椎间孔者占26.0%,位于T9-L1水平者占79.5%。全部病例图像质量为优秀的显示率为63.9%,一般者显示率为23.6%,而且非血管畸形组AKA显示率高达98.1%。结论 256层螺旋CT可以很好的显示AKA的解剖位置,可作为无创性血管成像的首选检查方法。Objective To assess the ability of 256-slice CT angiography to visualize the anatomy of Adamkiewicz artery（AKA）. Methods 72 patients underwent 256-slice CT spinal cord angiography, various reconstruction techniques including multi-planar reconstruction（MPR）, curved-planar reconstruction（CPR）, volume render（VR）, maximum intensity projection（MIP） were used to visualize and classify AKA according to vascular continuity in anatomy and image quality. Results As the main feeding artery of the spinal cord, 74.0% of AKA originated from the left intervertebral foramen, 26.0% from the right side, and 79.5% of the total AKA originated between T9 and L1. Of all the cases, 63.9% of AKA was excellently displayed, 23.6% generally displayed. 98.1% of the total AKA was clearly visualized in non- malformation group. Conclusion As a noninvasive imaging technique, 256-slice CT can clearly depict the anatomy of Adamkiewicz artery.

关 键 词：脊髓前大根动脉 256层螺旋CT 解剖位置 

分 类 号：R322.121[医药卫生—人体解剖和组织胚胎学]