脑动静脉畸形静脉引流特点的血管影像学分析

Angiographic analysis of the characteristics of venous drainages in cerebral arteriovenous malformations

目的 探讨脑动静脉畸形引流静脉的影像学特点。 方法 回顾性分析69例脑动静脉畸形脑血管造影影像资料,观察引流静脉的类型、引流方向、扩张度、迂曲程度、有无静脉湖、引流静脉及静脉窦有无狭窄及其部位等。 结果 颅内脑动静脉畸形静脉引流可出现多种形式,其中深、浅静脉均引流33例,单纯浅静脉引流23例,单纯深静脉引流13例;引流静脉显著扩张40例,明显迂曲33例,明显狭窄34例,静脉返流28例,出现静脉湖17例,静脉窦狭窄62例,静脉窦缺如或闭塞30例。 结论 脑动静脉畸形引流静脉的影像学表现尽管存在多样性和复杂性,但其引流模式具有一定的规律性。

Objective To study the image characteres of venous drainages in cerebral arteriovenous malformations (cAVM). Methods Analyse the cerebral angiography imagings of 69 cases with cAVMs retrospectively. Observe the types, draining directions, dilation, tortuousity and varix in draining veins, stenosis and the location in draining veins and venous sinus, et al. Results The venous drainages of cAVM are multiforms. 33 cases drain both to deep and surface veins, 23 only to surface, 13 only to deep; 40 with serious dilation, 33 with obvious tortuous, 34 with notable stenosis, 28 with countercurrent, 17 with varix. 62 with sinus stenosis, 30 with sinus abscent or occlusion. Conclusion Although the figures of venous drainages in cAVMs have multiple forms and are complicated, their patterns have certain rules.