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Intracranial Dural Arteriovenous Fistula with Retrograde Cortical Venous Drainage: Use of Susceptibility-Weighted Imaging in Combination with Dynamic Susceptibility Contrast Imaging

Intracranial Dural Arteriovenous Fistula with Retrograde Cortical Venous Drainage: Use of... This Article Figures Only Full Text Full Text (PDF) All Versions of this Article: ajnr.A2231v1 31/10/1903 most recent Alert me when this article is cited Alert me if a correction is posted Citation Map Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via CrossRef Google Scholar Articles by Noguchi, K. Articles by Seto, H. PubMed PubMed Citation Articles by Noguchi, K. Articles by Seto, H. Hotlight (NEW!) What's Hotlight? American Journal of Neuroradiology 31:1903-1910, November-December 2010 © 2010 American Society of Neuroradiology INTERVENTIONAL Intracranial Dural Arteriovenous Fistula with Retrograde Cortical Venous Drainage: Use of Susceptibility-Weighted Imaging in Combination with Dynamic Susceptibility Contrast Imaging K. Noguchi a , N. Kuwayama b , M. Kubo b , Y. Kamisaki a , K. Kameda a , G. Tomizawa a , H. Kawabe a and H. Seto a a From the Departments of Radiology (K.N., Y.K., K.K., G.T., H.K., H.S.) b Neurosurgery (N.K., M.K.), Toyama University, Toyama, Japan. Please address correspondence to Kyo Noguchi, MD, Department of Radiology, Toyama University, 2630 Sugitani, Toyama 930-0194, Japan; e-mail: kyo@med.u-toyama.ac.jp BACKGROUND AND PURPOSE: SWI is a new MR imaging method that maximizes sensitivity to magnetic susceptibility effects with phase information for visualizing small cerebral veins. The purpose of this study was to report the use of SWI in combination with DSC in examining related RCVD in patients with intracranial DAVFs. MATERIALS AND METHODS: Ten patients with angiographically confirmed DAVFs with RCVD underwent conventional MR imaging, SWI, and DSC. The ability of SWI to depict dilated cerebral veins was evaluated and then compared with DSC. The hemispheres of patients with DAVFs were grouped into affected (with RCVD) or nonaffected (without RCVD) categories by angiography. Four patients had bilaterally affected hemispheres. A total of 14 affected hemispheres in patients with DAVFs with RCVD were evaluated. RESULTS: SWI showed dilated cerebral veins on the surface of the brain in all (100%) of the 14 affected hemispheres in patients with DAVFs with RCVD and deep in the brain in 9 (64%). T2-weighted imaging showed prominent flow-voids on the surface of the brain in 10 (71%) of the 14 affected hemispheres in patients with DAVFs with RCVD and deep in the brain in 5 (36%). DSC showed increased cerebral blood volume in all of the 14 affected hemispheres. The SWI findings regarding dilated veins on the surface of the brain corresponded well with the areas of increased cerebral blood volume. CONCLUSIONS: SWI in combination with DSC could be used to characterize the presence of RCVD in patients with DAVFs. Abbreviations: CBV, cerebral blood volume • DAVF, dural arteriovenous fistula • DSC, dynamic susceptibility-weighted contrast-enhanced perfusion MR imaging • EPI, echo-planar imaging • GE, gradient-echo • MR-DSA, MR digital subtraction angiography • rCBV, relative cerebral blood volume • RCVD, retrograde cortical venous drainage • SSS, superior sagittal sinus • SWI, susceptibility-weighted imaging • TSS, transverse-sigmoid sinus • TS, torcular herophili Home Subscribe Author Instructions Submit Online Search the AJNR Archives Feedback Help Copyright © 2010 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png American Journal of Neuroradiology American Journal of Neuroradiology

Intracranial Dural Arteriovenous Fistula with Retrograde Cortical Venous Drainage: Use of Susceptibility-Weighted Imaging in Combination with Dynamic Susceptibility Contrast Imaging

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Publisher
American Journal of Neuroradiology
Copyright
Copyright © 2010 by the American Society of Neuroradiology.
ISSN
0195-6108
eISSN
1936-959X
DOI
10.3174/ajnr.A2231
Publisher site
See Article on Publisher Site

Abstract

This Article Figures Only Full Text Full Text (PDF) All Versions of this Article: ajnr.A2231v1 31/10/1903 most recent Alert me when this article is cited Alert me if a correction is posted Citation Map Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via CrossRef Google Scholar Articles by Noguchi, K. Articles by Seto, H. PubMed PubMed Citation Articles by Noguchi, K. Articles by Seto, H. Hotlight (NEW!) What's Hotlight? American Journal of Neuroradiology 31:1903-1910, November-December 2010 © 2010 American Society of Neuroradiology INTERVENTIONAL Intracranial Dural Arteriovenous Fistula with Retrograde Cortical Venous Drainage: Use of Susceptibility-Weighted Imaging in Combination with Dynamic Susceptibility Contrast Imaging K. Noguchi a , N. Kuwayama b , M. Kubo b , Y. Kamisaki a , K. Kameda a , G. Tomizawa a , H. Kawabe a and H. Seto a a From the Departments of Radiology (K.N., Y.K., K.K., G.T., H.K., H.S.) b Neurosurgery (N.K., M.K.), Toyama University, Toyama, Japan. Please address correspondence to Kyo Noguchi, MD, Department of Radiology, Toyama University, 2630 Sugitani, Toyama 930-0194, Japan; e-mail: kyo@med.u-toyama.ac.jp BACKGROUND AND PURPOSE: SWI is a new MR imaging method that maximizes sensitivity to magnetic susceptibility effects with phase information for visualizing small cerebral veins. The purpose of this study was to report the use of SWI in combination with DSC in examining related RCVD in patients with intracranial DAVFs. MATERIALS AND METHODS: Ten patients with angiographically confirmed DAVFs with RCVD underwent conventional MR imaging, SWI, and DSC. The ability of SWI to depict dilated cerebral veins was evaluated and then compared with DSC. The hemispheres of patients with DAVFs were grouped into affected (with RCVD) or nonaffected (without RCVD) categories by angiography. Four patients had bilaterally affected hemispheres. A total of 14 affected hemispheres in patients with DAVFs with RCVD were evaluated. RESULTS: SWI showed dilated cerebral veins on the surface of the brain in all (100%) of the 14 affected hemispheres in patients with DAVFs with RCVD and deep in the brain in 9 (64%). T2-weighted imaging showed prominent flow-voids on the surface of the brain in 10 (71%) of the 14 affected hemispheres in patients with DAVFs with RCVD and deep in the brain in 5 (36%). DSC showed increased cerebral blood volume in all of the 14 affected hemispheres. The SWI findings regarding dilated veins on the surface of the brain corresponded well with the areas of increased cerebral blood volume. CONCLUSIONS: SWI in combination with DSC could be used to characterize the presence of RCVD in patients with DAVFs. Abbreviations: CBV, cerebral blood volume • DAVF, dural arteriovenous fistula • DSC, dynamic susceptibility-weighted contrast-enhanced perfusion MR imaging • EPI, echo-planar imaging • GE, gradient-echo • MR-DSA, MR digital subtraction angiography • rCBV, relative cerebral blood volume • RCVD, retrograde cortical venous drainage • SSS, superior sagittal sinus • SWI, susceptibility-weighted imaging • TSS, transverse-sigmoid sinus • TS, torcular herophili Home Subscribe Author Instructions Submit Online Search the AJNR Archives Feedback Help Copyright © 2010 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X

Journal

American Journal of Neuroradiology – American Journal of Neuroradiology

Published: Nov 1, 2010

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