持久的原始嗅觉动脉与辅助的中脑动脉和部分重复的前沟通动脉相关
Hideki Endo1, Hidetoshi Ono2, Yuki Ishida3
1Department of Neurosurgery, Nakamura Memorial Hospital, South 1, West 14, Chuo-ku, Sapporo, Hokkaido, 060-8570, Japan. endo@med.nmh.or.jp.
Surgical and radiologic anatomy : SRA
|March 17, 2025
概括
这项研究报告了一例罕见的持续原始嗅觉动脉 (PPOA) 病例,怀疑有动脉瘤,辅助中脑动脉 (MCA) 和重复前沟通动脉 (ACoA). 仔细的成像对于识别这种复杂的脑血管变异至关重要.
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:
- 前脑动脉 (ACA),前沟通动脉 (ACoA) 和中脑动脉 (MCA) 的解剖变异很常见.
- 持久原始嗅觉动脉 (PPOA) 是一种罕见的ACA变体,具有头曲线,通常与脑动脉瘤有关.
- PPOA与辅助MCA和部分重复的ACOA的组合非常罕见,之前没有报告.
研究的目的:
- 报告一个与辅助MCA和部分重复的ACOA相关的PPOA独特病例.
- 突出高级磁共振成像 (MRI) 和血管造影 (MRA) 在识别复杂的脑血管异常方面的诊断实用性.
- 讨论这些组合变异对血液动力学压力和动脉瘤形成的潜在影响.
主要方法:
- 一个涉及46岁女性进行脑血管疾病查的案例研究.
- 诊断使用1.5特斯拉MRI和MRA,包括三维体积染.
- 对近位ACA,MCA起源和ACOA复合体进行了详细的分析.
主要成果:
- 双边PPOA (类型1) 与头曲线在近端ACA中被确定.
- 观察到一个小的凸,怀疑是动脉瘤,在左侧的PPOA发针曲线.
- 一个附带的左MCA源于膨胀的近邻,并注意到部分ACoA重复.
结论:
- 仔细的成像评估对于检测脑动脉罕见和复杂的解剖变异至关重要.
- 具有3D体积染的MRA增强了对复杂的血管结构和相关病理,如动脉瘤的理解.
- 附属MCA的存在可能会导致PPOA发针曲线的局部血液动力应激增加,从而可能增加动脉瘤风险.
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