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Coronary Arteries: Magnetization-prepared Contrast-enhanced Three-dimensional Volume-targeted Breath-hold MR Angiography¹

¹ From the Departments of Radiology (D.L., J.C.C., S.M.S., J.Z., V.S.D., J.P.F.) and Biomedical Engineering (D.L., S.M.S., V.S.D.), Northwestern University, 448 E Ontario St, Suite 700, Chicago, IL 60611; and the Department of Radiology, Daniel den Hoed Kliniek, Rotterdam, the Netherlands (P.A.W.). From the 1999 RSNA scientific assembly. Received March 22, 2000; revision requested May 12; revision received August 8; accepted August 30. Supported in part by National Institutes of Health grant HL 38698 and by Bracco Imaging, Milan, Italy and Siemens Medical Systems, Erlangen, Germany. Address correspondence to D.L. (e-mail: d-li2@northwestern.edu).

A volume-targeted contrast agent–enhanced breath-hold coronary magnetic resonance angiographic technique was optimized and evaluated in 16 volunteers. Substantial increases in coronary signal-to-noise ratio, contrast-to-noise ratio, lengths of depiction, and vessel sharpness were observed on enhanced images. The imaging approach with two 20-mL injections of contrast agent covers the left and right coronary arteries in two breath holds and is a promising method for coronary imaging.

Index terms: Coronary vessels, MR, 54.12142, 54.12143 • Magnetic resonance (MR), contrast enhancement, 54.12142, 54.12143 • Magnetic resonance (MR), vascular studies, 54.12142, 54.12143

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