PDF(Pubmed)
Abstract：
Previous studies have reported various anatomical differences in the cerebral artery between healthy subjects and patients with posterior circulation cerebral infarction. In particular, basilar artery angulation has been associated with posterior circulation cerebral infarction. We compared anatomical variations and the degree of anterior and lateral vertebrobasilar artery angulation and deviation to compare the incidence of cerebral infarction of healthy subjects and patients with posterior circulation cerebral infarction. We compared basilar artery anatomy using brain magnetic resonance angiography in 97 patients who underwent brain magnetic resonance angiography during health checkups at our hospital and in 92 patients diagnosed with posterior circulation cerebral infarction between 2012 and 2022. Anatomical variations, including fetal-type posterior cerebral artery, hypoplastic P1 segment, vertebrobasilar dolichoectasia, and dominant vertebral artery, as well as the degree of anterior and lateral deviation and angulation, were evaluated. Correlations between these variations and the occurrence of cerebral infarction were analyzed. The prevalence of hypoplastic P1 was significantly differences in patients with posterior circulation cerebral infarction (odds ratio: 5.655). Furthermore, patients with posterior circulation cerebral infarction exhibited more acute anterior and lateral angulation, as well as lateral deviation. Hypoplastic P1 and more acute anterior or lateral angulation of the vertebrobasilar artery are associated with increased frequency of cerebral infarction.
摘要：
先前的研究已经报道了健康受试者和后循环脑梗死患者之间脑动脉的各种解剖学差异。特别是,基底动脉成角度与后循环脑梗死有关。我们比较了解剖变异和椎基底动脉前、外侧的角度和偏离程度，以比较健康受试者和后循环脑梗死患者的脑梗死发生率。我们使用脑磁共振血管造影比较了2012年至2022年在我院进行健康体检期间接受脑磁共振血管造影的97例患者和92例诊断为后循环脑梗死的患者的基底动脉解剖。解剖变异,包括胎儿型大脑后动脉,发育不良P1段,椎基底动脉扩张症，和优势椎动脉，以及前后偏离和成角的程度，进行了评估。分析这些变异与脑梗死发生的相关性。后循环脑梗死患者P1发育不良的患病率差异有统计学意义（比值比：5.655）。此外，后循环脑梗死患者表现出更多的急性前角和侧角，以及横向偏差。P1发育不全和椎基底动脉更急性的前或外侧角度与脑梗死的频率增加有关。
