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Showing a case with heavily calcified LAD/D1 disease (A). PCI resulted in underexpanded stent and angiographic image as seen in image (B). Final angiography result after post-dilation with ultra high-pressure balloon shows well-expanded stent in proximal LAD and TIMI III flow (C). LAD/D1, left anterior descending/first diagonal; PCI, percutaneous coronary intervention; TIMI, thrombolysis in myocardial infarction.
