Neumaier-Probst Eva
Department of Neuroradiology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany.
Klin Neuroradiol. 2009 Mar;19(1):91-100. doi: 10.1007/s00062-009-8038-8. Epub 2009 May 15.
Spontaneous dural arteriovenous fistulas (DAVFs) are abnormal arteriovenous shunts within the dura mater of the sinuses. The exact etiology remains uncertain. Arterial feeder derive from the meningeal branches in the region. The clinical symptoms are highly dependent on the venous drainage. Computed tomography (CT) and magnetic resonance imaging (MRI) demonstrate the epiphenomena rather than the DAVF itself. Angiography is the most important modality in evaluating a DAVF. Based on the patterns of venous drainage, a classification and a treatment strategy are possible. Therapeutic modalities include manual compression, transarterial embolization, transvenous embolization, and/or surgical resection. Recent technical advances concerning embolic material and microcatheter make endovascular treatment less dangerous and more effective.
自发性硬脑膜动静脉瘘（DAVF）是窦硬膜内的异常动静脉分流。确切病因仍不确定。动脉供血源自该区域的脑膜分支。临床症状高度依赖于静脉引流。计算机断层扫描（CT）和磁共振成像（MRI）显示的是表象而非DAVF本身。血管造影是评估DAVF最重要的方式。基于静脉引流模式，可以进行分类并制定治疗策略。治疗方式包括手法压迫、经动脉栓塞、经静脉栓塞和/或手术切除。近期在栓塞材料和微导管方面的技术进步使血管内治疗危险性降低且更有效。
