缺席的右常 carotid 动脉与左辅助中间大脑动脉相关,通过计算机断层扫描 angiography 诊断
Atsushi Hashio1, Akira Uchino2, Kaima Suzuki3
1Department of Cerebrovascular Surgery and Stroke Center, International Medical Center, Saitama Medical University, 1397-1 Yamane, Hidaka, Saitama, 350-1298, Japan. 840atsushi@gmail.com.
Surgical and radiologic anatomy : SRA
|May 24, 2025
概括
发现右常 carotid 动脉 (CCA) 的先天性缺失与左辅助中脑动脉 (MCA). 这种罕见的血管变异,通过CTA诊断,突出显示了潜在干预的术前知识的重要性.
科学领域:
- 血管解剖学 血管解剖学
- 大脑血管变异的变化.
- 医学成像医学成像
背景情况:
- 常见动脉 (CCA) 的先天性缺失是一种罕见的血管异常.
- 相关的血管变异通常与大动脉发育有关.
- 辅助中脑动脉 (MCAs) 是不常见的脑血管发现.
研究的目的:
- 报告一个独特的先天性缺失右常 carotid 动脉 (CCA) 的病例.
- 描述它与对侧辅助中脑动脉 (MCA) 的关联.
- 突出计算机断层扫描血管学 (CTA) 的诊断作用.
主要方法:
- 一名63岁的妇女接受了计算机断层扫描血管造影 (CTA) 进行血管评估.
- 由于在MRI上偶然发现了狭窄的右侧内动脉 (ICA),所以进行了CTA.
- 对大脑和宫血管进行了详细的分析.
主要成果:
- 计算机断层扫描血管图 (CTA) 证实了右侧常见动脉 (CCA) 的缺失.
- 右外动脉 (ECA) 源自脑干,右内动脉 (ICA) 源自右下关节动脉.
- 鉴定出一个低塑性右ICA和一个左辅助性中脑动脉 (MCA). 患者仍然没有症状.
结论:
- 这是第一个报告的病例,该病例将CCA的先天性缺失与相反的附属MCA联系起来.
- 在这种情况下,对外附属MCA的存在可能是偶然的.
- 对这种罕见的解剖变异的认识对于规划内血管手术和管理脑动脉瘤至关重要.
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