持久的原始三动脉与带依赖的后部循环:一个偶然的,但临床相关的发现
Giuseppe Maria Andrea D'Arma1, Manuela Montatore1, Giovanni Ricatti2
1Department of Clinical and Experimental Medicine, Foggia University School of Medicine, Viale L. Pinto 1, Foggia 71122, Italy.
Radiology case reports
|March 5, 2026
概括
持久原始三角动脉 (PPTA) 是一种罕见的血管变异,可以改变大脑的循环. 精确的识别对于神经外科医生和放射科医生管理复杂的脑血管病例至关重要.
科学领域:
- 神经学 神经学
- 血管解剖学 血管解剖学
- 医疗成像医学成像
背景情况:
- 持久的原始三动脉 (PPTA) 是胚胎大动脉-基底动脉瘤最常见的残留物.
- 虽然很少见 (0.061%-0.6%),但PPTA显著影响后部循环的解剖学和血液动力学.
- 放射科医生和神经外科医生需要对PPTA的认识,以便对患者进行管理,特别是在动脉疾病或骨底部手术中.
研究的目的:
- 报告在怀疑内 Carotid 动脉狭窄的患者接受 CTA 的右侧 PPTA 的偶然发现.
- 为了说明已识别的PPTA的解剖特征和分类.
- 强调PPTA在脑血管疾病和手术规划中的临床意义.
主要方法:
- 计算机断层扫描血管学 (CTA) 用于诊断.
- 详细分析PPTA的起源,航线和供应区域.
- 基于已确定的解剖模式的PPTA的分类 (萨尔茨曼,萨拉斯).
主要成果:
- 偶然地发现了一个右侧的PPTA,起源于内动脉的石-洞穴结口.
- 该PPTA供应远端基底动脉,后脑动脉和小脑动脉.
- 相关发现包括缺血性近端基底动脉和左后沟通动脉,与混合的萨尔茨曼型I-II模式和萨拉斯中间亚型一致.
结论:
- 持久原始三角动脉是一种显著的血管变异,改变后部循环.
- 准确识别和分类PPTA对于预防诊断错误和指导手术和内血管干预至关重要.
- 对神经外科医生和干预放射科医生来说,了解PPTA解剖学对于管理骨底部和脑血管病理来说至关重要.
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