MR imaging of dural arteriovenous fistulas draining into cerebellar cortical veins

Seon Kyu Lee, Robert A. Willinsky, Walter Montanera, Karel G. TerBrugge

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

BACKGROUND AND PURPOSE: Retrograde leptomeningeal venous drainage (RLVD) in a dural arteriovenous fistula (DAVF) is associated with intracerebral hemorrhage, nonhemorrhagic neurologic deficit, or death, and recognizing the presence of this drainge is important. We investigated the MR findings of DAVFs draining into cerebellar cortical veins and compared these findings with those of conventional angiography. METHODS: The MR and angiographic findings of six patients (five men, one woman; mean age, 73.4 years) with DAVF with RLVD into cerebellar cortical veins were reviewed retrospectively. Signal intensity characteristics, contrast material enhancement, topography of the lesion, and presence of signal voids were evaluated on MR images. Site of the shunt, feeding arteries, and draining veins were evaluated on angiograms. RESULTS: In all patients, MR images showed high signal intensity on T2-weighted images and peripheral enhancement on gadolinium-enhanced T1-weighted images at the inferior aspect of the cerebellar hemisphere. A combination of posterior meningeal and occipital arteries was the most frequent blood supply (83%) for these DAVFs. In all six patients, the inferior hemispheric vein was the primary draining vein. CONCLUSION: The characteristic MR findings of DAVF draining into cerebellar cortical veins represent venous congestive encephalopathy in the territory of the involved cortical vein.

Original languageEnglish (US)
Pages (from-to)1602-1606
Number of pages5
JournalAmerican Journal of Neuroradiology
Volume24
Issue number8
StatePublished - Sep 1 2003
Externally publishedYes

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Clinical Neurology

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    Lee, S. K., Willinsky, R. A., Montanera, W., & TerBrugge, K. G. (2003). MR imaging of dural arteriovenous fistulas draining into cerebellar cortical veins. American Journal of Neuroradiology, 24(8), 1602-1606.