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健康和动脉瘤内动脉分支的形态特征

Alexandra Lauric^1,2, Adel M Malek^1,2

¹1Department of Neurosurgery, Tufts Medical Center, Boston; and.

Journal of neurosurgery

|January 22, 2026

概括

内动脉 (ICA) 两叉动脉瘤与更宽的两叉角度有关,特别是在中脑动脉 (MCA) 侧. 在健康和动脉瘤病例中,A1段的优势影响了这些角度.

科学领域:

神经成像是一种神经成像.
血管解剖学血管解剖学
脑血管疾病脑血管疾病

背景情况:

内动脉 (ICA) 两叉动脉 (ICAB) 动脉瘤由于其复杂的形态和起源而存在复杂的治疗挑战.
关于ICAB形态的研究有限,尽管与这些动脉瘤相关的破裂风险和复发率很高.

研究的目的:

分析和比较ICAB形态在动脉瘤, contralateral,和健康的分叉.
调查双边差异,前脑动脉 (ACA) 主导地位,以及与血管最佳性原则 (VOP) 的偏差.

主要方法:

评估了194个血管图卷 (40个动脉瘤,28个逆侧,126个健康).
对ICAB形态的评估,包括容器直径和角度 (ΦMCA, ΦACA, ΦICAB).
对动脉瘤特征和VOP参数的分析,双边分析考虑了ACA的主导地位.

主要成果:

与对照组相比,动脉瘤ICAB显示了明显更广泛的ΦMCA和 ΦICAB (p < 0.001).
确定了角度值: ΦMCA 的 51.7° 和 ΦICAB 的 152.4°.
动脉瘤主要来自顶部 (65%) 和ACA (30%),通常在具有主导或共主导A1段的ICAB上.

结论:

动脉瘤ICAB与健康对照相比,表现出更宽的分叉角度,特别是在MCA侧.
在动脉瘤和健康个体中,A1主导影响ICAB形态.
ICAB形态对于动脉瘤发生的可能性至关重要,为临床决策和预测分析提供了信息.

关键词:

分叉形态的形态学内动脉的分叉动脉瘤动脉瘤动脉瘤内动脉瘤是什么?血管疾病血管疾病

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