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(Stroke. 2005;36:1562.)
© 2005 American Heart Association, Inc.

Research Reports

Multi-Detector Row Computed Tomography Angiography in Diagnosing Spinal Dural Arteriovenous Fistula

Initial Experience

Ping-Hong Lai, MD; Huay-Ben Pan, MD; Chien-Fang Yang, MD; Lee-Ren Yeh, MD; Shu-Shong Hsu, MD; Kwo-Wei Lee, MD; Mei-Jui Weng, MD; Ming-Ting Wu, MD; Huei-Lung Liang, MD Clement-Kuen Chen, MD

From the Departments of Radiology (P.H.L., H.B.P., L.R.Y., M.J.W., M.T.W., H.L.L., C.K.C.) and Neurosurgery (S.S.H.), Veterans General Hospital-Kaohsiung, National Yang-Ming University; the College of Medicine and Health (C.F.Y.), Fooyin University; and the Department of Radiology, Changhua Christian Hospital (K.W.L.), Taiwan, ROC.

Correspondence to Ping-Hong Lai, MD, Department of Radiology, Veterans General Hospital-Kaohsiung, 386 Ta-Chung First Rd., Kaohsiung, Taiwan 813. E-mail phlai{at}isca.vghks.gov.tw

Background and Purpose— Multi-detector computed tomographic (MDCT) angiography is a recently developed imaging technique that can study small vessels such as medullary arteries and veins. The purpose of this study was to evaluate MDCT angiography in diagnosing SDAVF.

Methods— Eight patients with initial magnetic resonance imaging (MRI) and clinical findings suggestive of spinal dural arteriovenous fistula (SDAVF) and 8 control subjects underwent MDCT angiography. Both MDCT angiography and catheter angiography were performed within 5 days in patients with SDAVFs. The results of MDCT angiography in patients with SDAVFs were compared with those of catheter angiography.

Results— MDCT angiography detected engorged perimedullary draining veins and correctly localized the fistula of the SDAVFs, and correlated well with catheter angiography. Fistula was at the thoracic level in 7 patients, and sacral level in 1 patient. MDCT angiography did not visualize the engorged perimedullary venous plexus in the control group.

Conclusion— MDCT angiography correlated well with catheter angiography in diagnosing SDAVFs. It might play a role in shortening the length of the catheter angiography in diagnosing this disease.

Key Words: angiography • arteriovenous fistula • central nervous system • computed tomography • spinal cord • vascular malformations

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