硬脑膜动静脉瘘的临床及影像学特征

Clinical presentations and neurologic imaging features with dural arteriovenous fistula

目的研究硬脑膜动静脉瘘(duralarteriovenousfistula,DAVF)的临床表现和影像学特征。方法对8例DAVF患者的临床和神经影像学资料进行回顾性分析。结果DAVF临床表现复杂多样,以头痛(4例)和搏动性颅内血管杂音(5例)为主要临床表现,也可以癫痫为首发症状。头部CT和MRI可显示DAVF的一些继发性改变,如蛛网膜下腔出血、颅内出血、广泛的血管流空现象及迂曲扩张异常的血管。MRA、DSA可显示吻合动脉及引流静脉。结论DAVF的CT、MRI、MRA及MRV等具有一定的特征性改变。结合临床资料可提示DAVF,确诊依赖于脑血管造影(DSA)。

Objective To investigate clinical findings and neurologic imaging features of dural arteriovenous fistula （DAVF）. Methods The clinical presentations and neurologic imaging appearances for 8 patients with DAVF were analyzed retrospectively. Results The clinical findings of DAVF was complicated,the main clinical manifestations of the 8 cases of DAVF were headache （4 cases） and cranial vascular souffle （5 cases）,as first symptom was epilepsy. The secondary changes of DAVF by cranial CT or MRI were subaracbnoid hemorrhage or brain hemorrhage or phenomena of blood empty of extensive vessels and abnormal vascular with circuity and dilatation. Cerebrovasular radiography presented inosculated artery and conducted vein. Conclusion The CT or MRI or MRA of DAVF has some characteristic features ,and the proper diagnosis was combined with clinical findings. The definite diagnosis depends on DSA results.