Morphology and morphometry of the vertebrobasilar system intracranial segment: a computed tomography angiography study.

IF 1.2 Q3 ANATOMY & MORPHOLOGY
Savvas Melissanidis, George Triantafyllou, George Botis, Konstantinos Natsis, Katerina Vassiou, Marianna Vlychou, George Tsakotos, Theodosis Kalamatianos, Nikolaos Lazaridis, George Matsopoulos, Maria Piagkou
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Abstract

The current computed tomography angiography (CTA) study aimed to investigate the vertebrobasilar system (VBS) intracranial segment variant morphological anatomy and morphometry. Two hundred CTAs of 142 male and 58 female patients (with a mean age of 62.85±14.08) were retrospectively evaluated. Four hundred vertebral arteries (VAs) and 200 basilar arteries (BAs) were studied. In the V3 segment, the vessel's high riding course was identified in 10.8%. An arcuate foramen (AF) was identified surrounding the V3 segment in 12.0%. When AF was present, the V3 diameter was statistically significantly narrower (P<0.001). The V4 segment was hypoplastic in 11.0% and fenestrated in one case (0.3%). The posterior inferior cerebellar artery typically originated from the V4 segment in 76.5%. On the BA morphology, we classified the vessel according to its inclination. The most common type was the J-shaped (55.5% of cases). The BA inclination was positively correlated with the vessel's length (P=0.002). The VBS intracranial segment was systematically investigated. Knowledge of the VBS typical and variant anatomy is essential for anatomists, radiologists, and clinicians. The most important findings was the following: (1) the AF presence significantly narrowed the VA diameter, which could lead to the vessel's compression, (2) the BA linear length (bending or inclination) positively correlated with the BA length, and (3) the V4 length was positively correlated with its diameter.

椎基底动脉系统颅内段的形态学和形态计量学:计算机断层血管造影研究。
当前的计算机断层血管造影(CTA)研究旨在探讨椎基底系统(VBS)颅内段变异的形态学解剖和形态测量。回顾性评价200例cta, 142例男性,58例女性(平均年龄62.85±14.08)。研究了400条椎动脉(VAs)和200条基底动脉(BAs)。在V3段中,船舶的高骑航向确定为10.8%。12.0%的患者在V3段周围发现弓形孔(AF)。当AF存在时,V3直径变窄具有统计学意义(PP=0.002)。系统地观察VBS颅内段。对于解剖学家、放射科医生和临床医生来说,VBS的典型和变异解剖知识是必不可少的。最重要的发现是:(1)AF的存在使VA直径明显变窄,可能导致血管受压;(2)BA线性长度(弯曲或倾斜)与BA长度正相关;(3)V4长度与其直径正相关。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Anatomy & Cell Biology
Anatomy & Cell Biology ANATOMY & MORPHOLOGY-
CiteScore
1.80
自引率
9.10%
发文量
75
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