Variations and morphometric analysis of the proximal segment of the superior cerebellar artery

被引:15
作者
Krzyzewski, Roger M. [1 ]
Stachura, Magdalena K. [1 ]
Stachura, Anna M. [1 ]
Rybus, Justyna [1 ]
Tomaszewski, Krzysztof A. [1 ]
Klimek-Piotrowska, Wieslawa [1 ]
Brzegowy, Pawel [1 ,2 ]
Urbanik, Andrzej [2 ]
Walocha, Jerzy A. [1 ]
机构
[1] Jagiellonian Univ, Coll Med, Dept Anat, PL-31034 Krakow, Poland
[2] Jagiellonian Univ, Coll Med, Dept Radiol, Krakow, Poland
关键词
Anatomical variations; Computed tomography; Neuro-vascular conflict; Posterior cerebral circulation; Superior cerebellar artery; MICROVASCULAR DECOMPRESSION; MICROSURGICAL ANATOMY; TRIGEMINAL NERVE; ANEURYSMS;
D O I
10.1016/j.pjnns.2014.07.006
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Introduction: The superior cerebral artery is a clinically significant vessel, but little is known about its radiological anatomy. The aim of this study was to describe the anatomical variations of the proximal segment of the superior cerebellar artery using Computed Tomography Angiography. Materials and methods: The study group consisted of 200 subjects (54.5% female, mean age +/- SD 56.2 +/- 17.2 years) that had undergone head Computed Tomography Angiography. Subjects with any intracranial pathologies were excluded. Images in Maximum Intensity Projections were used to study the anatomical anomalies of the superior cerebellar artery. Results: In 200 subject 388 superior cerebellar arteries were found. Twelve (3.09%) SCAs were duplicated in 11 patients and all originated from the basilar artery. In 8 (4.00%) patients the superior cerebellar artery was absent. The origin of the SCA was most often bilateral, mainly from the basilar artery (76.29%). The superior cerebellar artery diameter, measured at the site of the origin, was statistically significantly different depending on the place of the origin: wider when originating from the basilar artery as a single vessel (1.48 +/- 0.42 mm vs. 1.34 +/- 0.52 mm; p = 0.03) and narrower when originating as duplicated one (1.38 +/- 0.48 mm vs. 1.46 +/- 0.44 mm; p = 0.55). Conclusion: Superior cerebellar artery usually originates bilaterally from the basilar artery as a single trunk. Its diameter is significantly wider in that type in comparison to other anatomical variations. (C) 2014 Polish Neurological Society. Published by Elsevier Urban & Partner Sp. z o.o. All rights reserved.
引用
收藏
页码:229 / 235
页数:7
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