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Radiology, Vol 193, 731-738, Copyright © 1994 by Radiological Society of North America
ARTICLES |
AJ Duerinckx and MK Urman
Radiology VA Medical Center, West Los Angeles (Wadsworth).
PURPOSE: To assess the diagnostic value of two-dimensional coronary magnetic resonance (MR) angiography in patients evaluate for ischemic heart disease. MATERIALS AND METHODS: Twenty patients who underwent elective cardiac catheterization with coronary angiography were evaluated with two-dimensional coronary MR angiography. Coronary MR angiography was performed with a fat-suppressed electrocardiographically gated gradient-echo sequence with k-space segmentation with a 1.5-T imager. RESULTS: Seventeen of the 20 patients had a hemodynamically significant coronary artery lesion (> or = 50% reduction in luminal diameter), with a total of 27 proximal lesions. The sensitivity for detection of hemodynamically significant lesions was 62% for the right coronary artery, 50% for the left main artery, 73% for the left anterior descending artery, and 0% for the left circumflex artery, with an overall sensitivity of 63%. Corresponding specificities were 56%, 84%, 37%, and 82% respectively. CONCLUSION: Although in an early stage of development, two-dimensional coronary MR angiography can depict 63% of hemodynamically significant coronary artery lesions.
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