Intracranial dural arteriovenous fistulas: Classification, imaging findings, and treatment

Dheeraj Gandhi, J. Chen, M. Pearl, J. Huang, J. J. Gemmete, S. Kathuria

Research output: Contribution to journalReview article

Abstract

Intracranial DAVFs are pathologic dural-based shunts and account for 10%-15% of all intracranial arteriovenous malformations. These malformations derive their arterial supply primarily from meningeal vessels, and the venous drainage is either via dural venous sinuses or through the cortical veins. DAVFs have a reported association with dural sinus thrombosis, venous hypertension, previous craniotomy, and trauma, though many lesions are idiopathic. The diagnosis is dependent on a high level of clinical suspicion and high-resolution imaging. Cross-sectional imaging techniques by using CT and MR imaging aid in the diagnosis, but conventional angiography remains the most accurate method for complete characterization and classification of DAVFs. The pattern of venous drainage observed on dynamic vascular imaging determines the type of DAVF and correlates with the severity of symptoms and the risk of hemorrhage.

Original languageEnglish (US)
Pages (from-to)1007-1013
Number of pages7
JournalAmerican Journal of Neuroradiology
Volume33
Issue number6
DOIs
StatePublished - Jun 1 2012

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Clinical Neurology

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