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Figure 2 This case example illustrates the discrepancy between angiographic and IVUS evaluation of LMCA disease. This patient underwent bypass surgery for ostial LMCA disease (black arrow). After the bypass grafts closed, he was referred for IVUS study. By QCA, the ostial LMCA stenosis MLD measured 1.32 mm. By IVUS, there was mild diffuse atherosclerosis (white arrows), no significant plaque burden and an MLD of 3.5 mm. LMCA = left main coronary artery. Other abbreviations as in Figure 1.
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