重复大脑中动脉的3D-TOF-MRA表现及其临床意义研究  

Manifestations of duplicated middle cerebral artery in three dimensional time of flight MR angiography and their clinical significance

作　　者：王娟[1] 程敬亮[2] 张勇[2] 宋喜明[1] 尚伟[1] 刘安龙[1] Wang Juan;Cheng Jingliang;Zhang Yong;Song Ximing;Shang Wei;Liu A nlong(Department of Radiology,A nyang People＇s Hospital,A nyang 455000,China;Department of MR Imaging,First Affiliated Hospital of Zhengzhou University,Zhengzhou 450052,China)

机构地区：[1]安阳市人民医院放射科,455000 [2]郑州大学第一附属医院磁共振科,郑州450052

出　　处：《中华神经医学杂志》2018年第11期1120-1124,共5页Chinese Journal of Neuromedicine

摘　　要：目的探讨重复大脑中动脉的三维时间飞跃法（3D-TOF）-MRA表现及其临床意义。方法收集安阳市人民医院放射科自2013年7月至2017年4月检出的37例重复大脑中动脉患者的临床资料，并对其MRA原始图像经最大密度投影行三维重建获得3D-TOF-MRA资料，观察重复大脑中动脉的起源、管径、走行及分布等影像学特点，并对重复大脑中动脉进行分型。结果37例重复大脑中动脉患者中A型24例，其重复大脑中动脉起源于颈内动脉末端，近端均平行于大脑中动脉M1段走行；B型13例，其重复大脑中动脉起源于脉络膜前动脉与颈内动脉末端之间，其中8例近端平行于大脑中动脉M1段走行，5例近端见较明显的向颞叶弯曲。A型重复大脑中动脉管径相对大小为0.94±0.07（0.72~1.00），B型重复大脑中动脉管径相对大小为0.68±0.22（0.31~1.00），比较差异有统计学意义（P〈0.05）。结论3D-TOF-MRA能快速、直观地显示重复大脑中动脉的详细信息，且该血管变异具有重要的临床意义，在临床工作中应对其加强认识。ObjectiveTo explore the three dimensional time of flight （3D-TOF） MR angiography （MRA） manifestations and its clinical significance in duplicated middle cerebral artery （DMCA）.MethodsThe clinical and MRA data of 37 patients with DMCA, admitted to our hospital from July 2013 to April 2017, were collected. The original images were reconstructed by maximum immensity projection （MIP）. The imaging features of origin, sizes, walking and distribution of DMCA were observed, and DMCA classification was performed.ResultsAmong the 37 patients with DMCA, 24 patients with type A were from the internal carotid artery （ICA） terminal, and the proximal part was parallel to the MCA-M1 segment; 13 patients with type B were originated between the anterior choroidal artery and the ICA terminal, the proximal end in 8 patients was parallel to the M1 section of the middle cerebral artery and the proximal end in 5 patients was obviously curved to the temporal lobe. The relative size of type A was 0.94±0.07 （0.72-1.00）, while that of type B was 0.68±0.22 （0.31-1.00）, with statistically significant difference （P〈0.05）.ConclusionsThe 3D-TOF-MRA can display the detailed information of DMCA, which can be used as the important methods for its diagnosis. And this vascular variation has important clinical significance, and awareness on this vascular variation should be strengthened in clinical work.

关 键 词：重复大脑中动脉 血管变异 三维时间飞跃法-磁共振血管成像 

分 类 号：R743.9[医药卫生—神经病学与精神病学]