持久的亚洲前跨段性动脉:基于多切片螺旋计算断层扫描血管图的考虑
Qin Xiao1,2, Yi Mao1,2, Shunan Wang3,4
1Department of Radiology, Daping Hospital, Army Medical University, Chongqing, 400042, China.
Surgical and radiologic anatomy : SRA
|December 2, 2024
概括
持久性亚洲前跨段性动脉 (PPIA) 是一种罕见的血管变异. 这项研究引入了PPIA的新分类系统,改善了对后部循环的理解,并有助于手术规划.
科学领域:
- 血管解剖学 血管解剖学
- 医学成像医学成像
- 神经学 神经学
背景情况:
- 多切片螺旋计算断层扫描 (CT) 血管造影 (MSCTA) 对于评估头部和部血管解剖学至关重要.
- 持久性亚洲前跨段性动脉 (PPIA) 是一种罕见的血管变异,可以通过MSCTA进行可视化.
研究的目的:
- 使用MSCTA探索PPIA的成像特征.
- 评估PPIA的临床意义.
- 提出基于后部循环血液供应的PPIA新型分类系统.
主要方法:
- 对通过MSCTA诊断出PPIA的11名患者的成像和临床数据的回顾性分析.
主要成果:
- PPIA的发生率为0.01%.
- 引入了PPIA的新型分类系统,根据原产地将病例分为I型 (18.2%) 和II型 (81.8%).
- 相关的血管异常包括脊椎动脉发育/低成形和持续动脉或基底动脉的低成形. 两名患者患有动脉瘤,一名患有脑梗塞,一名患有肺动脉静脉.
结论:
- 新的PPIA分类系统提高了对后部循环的理解,这对于预干预和手术前评估至关重要.
- 在PPIA病例中,两侧脊椎动脉始终是低可塑的.
- 在大约75%的病例中,PPIA主要供应后腔血管系统.
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