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Figure 1 Stable lesion in a patient with stable angina, demonstrating hemodynamically significant proximal left circumflex (LCX) stenosis. (A) Curved thin slice (5 mm) maximum intensity projection of the long axis of the proximal LCX demonstrates significant luminal narrowing in the presence of calcified plaque (distal dashed line). (B) Proximal cross-sectional reference demonstrates a normal lumen of the LCX (area: 13 mm²). (C) Cross-section through the lesion demonstrates calcified plaque (area: 9 mm²). Small residual lumen (area: 4 mm², degree of stenosis: 71%) and positive remodeling index (RI: 0.69). (D) Invasive selective coronary angiography demonstrates a significant stenosis of the proximal LCX (60%).