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Technical Developments |
1 From the Department of Medical Imaging, Division of Neuroradiology (R.I.F., C.M., J.K.K., R.A.W., P.W.C., D.G.W., G.C.), the Department of Surgery, Division of Neurosurgery (M.L.S.), and the Department of Medical Biophysics (G.A.W.), University of Toronto, University Health Network, Toronto Western Hospital, Fell Pavilion 3-404, 300 Bathurst St, Toronto, Ontario, Canada M5T 2S8; the Department of Imaging Research, Sunnybrook and Women’s College Health Science Centre, Toronto, Ontario, Canada (J.K.K., M.L., J.A.S., G.A.W.); and the Laboratory of Cardiac Energetics, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Md (J.A.D.). Received July 26, 2000; revision requested September 8; revision received November 13; accepted December 4. Supported in part by a research grant (no. A3048) from the Heart and Stroke Foundation of Ontario and the Canadian Heads of Academic Radiology/Nycomed Research Development Program, 1999. Address correspondence to R.I.F. (e-mail: richard.farb@utoronto.ca).
Auto-triggered elliptic centric-ordered three-dimensional (3D) gadolinium-enhanced magnetic resonance (MR) angiography was compared with 3D multiple overlapping thin-slab acquisition time-of-flight (TOF) MR angiography in the evaluation of intracranial arteriovenous malformations (AVMs) in 10 patients. Intraarterial digital subtraction angiography (DSA) was the reference standard. Gadolinium-enhanced MR angiograms were found to be equivalent to DSA images in AVM component depiction in 70%–90% of cases and were consistently superior to TOF MR angiograms.
Index terms: Arteriovenous malformations, 10.75 • Cerebral blood vessels, abnormalities, 10.75 • Cerebral blood vessels, MR, 17.12142, 17.12143 • Magnetic resonance (MR), technology • Magnetic resonance (MR), time of flight, 17.12142, 17.12143
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