Abstract
Objective To introduce the imaging characteristics and diagnostic procedure of dural arteriovenous fistulas (DAVF) to improve the understanding and correct diagnosis rate of this disease.Methods A retrospective analysis of clinical and imaging data of 2 patients with intracranial DAVF,admitted to our hospital from 2009 and 2011,was performed in our study.Results The2 patients were confirmed as DAVF type Ⅱ with headache as its clinical feature.MRI and magnetic resonance venography did not show any abnormality of the two patients,while DSA could make a definition of DAVF.Conclusion DAVF can presents with intracranial hypertension,and DSA and MR digital subtraction angiography can be employed to make a different diagnosis. Key words: Dural arteriovenous fistula; Intracranial hypertension; MR digital subtraction angiography
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