一个流行性解剖成像研究后下大脑动脉的起源
Ana-Maria Davidoiu1, Mugurel Constantin Rusu2, Corneliu Toader3,4
1Doctoral School, Faculty of Medicine, "Victor Babeş" University of Medicine and Pharmacy, RO-300041 Timişoara, Romania.
Medicina (Kaunas, Lithuania)
|September 28, 2024
概括
后下脑小动脉 (PICA) 往往起源于脊椎动脉内,但其外侧和外侧起源于脊椎动脉内.
科学领域:
- 神经外科 神经外科
- 人体解剖学 解剖学 解剖学
- 放射学 放射学是一门学科.
背景情况:
- 后下脑小动脉 (PICA) 通常由脊椎动脉 (VA) 的内静脉V4段产生的.
- 来自V3段的外体起源和在硬度环内的外体起源不太常见,但具有显著的解剖变异.
- 从历史上看,PICA起源的地形模式,特别是跨度变化,一直被忽视.
研究的目的:
- 为了研究和分类后下大脑动脉起源的地形图案.
- 为了确定外皮,外皮和内皮PICA来源的频率.
- 分析这些PICA原产地类型的双边对称性.
主要方法:
- 对225张计算机断层扫描血管图的回顾性分析.
- 将PICA来源分为四种类型:缺席 (类型0),异位 (类型1),异位 (类型2) 和异位 (类型3).
- 评估双边对称性和PICA原产地类型的组合.
主要成果:
- 显著的百分比 (36%) 的PICA缺席 (类型0).
- 典型的腹腔内源 (类型3) 占58%,而腹腔外源 (类型1) 和腹腔外源 (类型2) 较为罕见 (分别为0.44%和5.56%).
- 双边PICA缺失发生在18.67%;观察到各种原产地类型的组合,其中40.44%显示双边3型原产地.
结论:
- 外腔和外腔PICA的起源代表了硬膜环的可选内容,在神经外科手术过程中在大孔 (foramen magnum) 存在风险.
- 了解这些变异对于手术规划和避免并发症至关重要.
- 罕见的双半球PICA可以起源于内外和外外的位置.
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