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Figure 5a: Coronary angiography in a 53-year-old man with exertional chest pain. AA = ascending aorta, LA = left atrium, LV = left ventricle, PA = pulmonary artery, RV = right ventricle, RVOT = right ventricular outflow tract. (a) Coronary MR angiogram (left) along left main and left anterior descending coronary arteries and corresponding conventional coronary angiogram in right anterior oblique projection (right) indicate severe stenosis at bifurcation of left anterior descending and left circumflex coronary arteries involving the left main coronary artery (solid arrows) and more distal focal stenosis of left circumflex coronary artery (dotted arrows). (b) Coronary MR angiogram (left) in coronal orientation along course of right coronary artery and corresponding conventional angiogram in left anterior oblique projection (right) indicate two stenoses of proximal (solid arrows) and middle (dotted arrows) right coronary artery. (Reprinted, with permission, from reference 61.)