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Figure 3 Cardiac magnetic resonance imaging examples from three study patients with a variety of myocardial perfusion deficits. All examples show only one midventricular slice of the stress images. (a) Inducible anteroseptal subendocardial perfusion defect (white arrow). X-ray angiography showed subtotal occlusion of the proximal left anterior descending coronary artery (LAD). (b) Inducible lateral perfusion defect in a thinned lateral wall (white arrow) and further small transmural septal perfusion defect (black arrow). X-ray angiography showed significant stenosis of the mid-LAD and an occluded left circumflex coronary artery. (c) Inferior transmural perfusion defect (white arrow). X-ray angiography showed a significant stenosis in the mid-right coronary artery.