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(Radiology. 2000;215:600-607.)
© RSNA, 2000

Technical Developments

Breath-Hold Three-dimensional Contrast-enhanced Coronary MR Angiography: Motion-matched k-Space Sampling for Reducing Cardiac Motion Effects1

Yi Wang, PhD, Priscilla A. Winchester, MD, Lawrence Yu, MD, Richard Watts, PhD, Guangliang Ding, PhD, Howard M. Lee, MD and Geoffrey W. Bergman, MD

1 From the Department of Radiology MR Research, Weill Medical College of Cornell University, 515 E 71st St, Suite S120, New York, NY 10021. From the 1998 RSNA scientific assembly. Received February 2, 1999; revision requested May 4; final revision received August 6; accepted August 30. Supported in part by research grants from the Whitaker Foundation, Epix Medical, and Berlex Laboratories. Address correspondence to Y.W. (e-mail: yiwang@mail.med.cornell.edu).

A view order that matches k-space sampling to cardiac motion within the acquisition window was developed for breath-hold three-dimensional contrast material–enhanced coronary magnetic resonance angiography. In vivo experiments in seven volunteers demonstrated that blurring was substantially reduced with this motion-matched view order as compared with the standard centric view order. Coronary arteries were well delineated.

Index terms: Coronary vessels, MR, 54.12142, 54.12143 • Magnetic resonance (MR), vascular studies, 54.121416, 54.12142




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