Main anatomical features of the M1 segment of the middle cerebral artery: a 3D time-of-flight magnetic resonance angiography at 3 T study
Main anatomical features of the M1 segment of the middle cerebral artery: a 3D time-of-flight magnetic resonance angiography at 3 T study
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DOI：
10.1007/s00276-008-0360-3
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发表时间：
2008-08-01
影响因子：
1.4
通讯作者：
Tatu, Laurent
中科院分区：
文献类型：
--
作者：
Vuillier, Fabrice;Medeiros, Elisabeth;Tatu, Laurent
我们的研究目的是利用3D TOF-MRA在3 t时确定大脑中动脉M1段（MRA）的主要解剖特征，重建和后处理的MRA图像由两位解剖学家独立分析，以确定M1段的路线模式、分裂模式和早期皮质分支模式。分裂模式被定义为两足、三足或其他。欧洲央行是根据其数量和距离M1段原点的距离来研究的。计算了用于确定M1段划分模式的观察者间协议。73%的mca呈双足状，17%为单足状，9%为三足状，1例呈扇形。在46%的案例中，没有发现欧洲央行。在其他情况下，只发现了一个欧洲央行，它来自M1部分的中间部分。我们的研究结果证实了死后显微解剖研究，并表明严格的解剖标准可以应用于3D TOF MRA。
The purpose of our study was to determine the main anatomical features of the M1 segment of middle cerebral artery (MRA) using a 3D TOF-MRA at 3 T. Reconstructed and post-processed MRA images were independently analysed by two anatomists in order to determine the course patterns, the division patterns and the early cortical branches patterns of the M1 segments. The division patterns were defined as bipode, tripode or other. The ECB were Studied according to their number and their distance from the origin of the M1 segment. The interobserver agreement, to determine the division patterns of the M1 segment, was calculated. The division of the M1 segment was bipode in 73% of the MCAs, monopode in 17%, tripode in 9%, and fan-shaped in 1. In 46% of the cases no ECB was found. In the other cases, only 1 ECB was found and it arose from the medium part of the M1 segment. Our results confirm post-mortem microdissection Studies and show that strict anatomical criteria may be applied to 3D TOF MRA at 3 T.