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Original Article
Volume 345:1863-1869 December 27, 2001 Number 26
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Coronary Magnetic Resonance Angiography for the Detection of Coronary Stenoses
W. Yong Kim, M.D., Ph.D., Peter G. Danias, M.D., Ph.D., Matthias Stuber, Ph.D., Scott D. Flamm, M.D., Sven Plein, M.D., Eike Nagel, M.D., Susan E. Langerak, M.Sc., Oliver M. Weber, Ph.D., Erik M. Pedersen, M.D., Ph.D., Matthias Schmidt, M.D., René M. Botnar, Ph.D., and Warren J. Manning, M.D.

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ABSTRACT

Background An accurate, noninvasive technique for the diagnosis of coronary disease would be an important advance. We investigated the accuracy of coronary magnetic resonance angiography among patients with suspected coronary disease in a prospective, multicenter study.

Methods Coronary magnetic resonance angiography was performed during free breathing in 109 patients before elective x-ray coronary angiography, and the results of the two diagnostic procedures were compared.

Results A total of 636 of 759 proximal and middle segments of coronary arteries (84 percent) were interpretable on magnetic resonance angiography. In these segments, 78 (83 percent) of 94 clinically significant lesions (those with a >=50 percent reduction in diameter on x-ray angiography) were also detected by magnetic resonance angiography. Overall, coronary magnetic resonance angiography had an accuracy of 72 percent (95 percent confidence interval, 63 to 81 percent) in diagnosing coronary artery disease. The sensitivity, specificity, and accuracy for patients with disease of the left main coronary artery or three-vessel disease were 100 percent (95 percent confidence interval, 97 to 100 percent), 85 percent (95 percent confidence interval, 78 to 92 percent), and 87 percent (95 percent confidence interval, 81 to 93 percent), respectively. The negative predictive values for any coronary artery disease and for left main artery or three-vessel disease were 81 percent (95 percent confidence interval, 73 to 89 percent) and 100 percent (95 percent confidence interval, 97 to 100 percent), respectively.

Conclusions Among patients referred for their first x-ray coronary angiogram, three-dimensional coronary magnetic resonance angiography allows for the accurate detection of coronary artery disease of the proximal and middle segments. This noninvasive approach reliably identifies (or rules out) left main coronary artery or three-vessel disease.


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From the Cardiovascular Division, Department of Medicine (W.Y.K., P.G.D., M. Stuber, R.M.B., W.J.M.), and the Department of Radiology (W.J.M.), Beth Israel Deaconess Medical Center and Harvard Medical School, Boston; the Magnetic Resonance Center, Department of Cardiology, and Institute of Experimental Clinical Research, Skejby Hospital, Aarhus University Hospital, Aarhus, Denmark (W.Y.K., E.M.P.); Philips Medical Systems, Best, the Netherlands (M. Stuber, R.M.B.); St. Luke's Episcopal Hospital and the Texas Heart Institute, Houston (S.D.F.); the Yorkshire Heart Centre, Leeds General Infirmary, Leeds, United Kingdom (S.P.); Internal Medicine Cardiology, German Heart Institute, Berlin, Germany (E.N.); the Department of Radiology and Cardiology, Leiden University Medical Center, Leiden, the Netherlands (S.E.L.); the Institute for Biomedical Engineering, University of Zurich, and the Swiss Federal Institute of Technology Zurich, Zurich, Switzerland (O.M.W.); and the Klinik und Poliklinik für Nuklearmedizin der Universität zu Köln, Cologne, Germany (M. Schmidt).

Address reprint requests to Dr. Manning at the Beth Israel Deaconess Medical Center, 330 Brookline Ave., Boston, MA 02215, or at wmanning{at}caregroup.harvard.edu.

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