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Coronary CT angiogram, invasive coronary angiogram and FFRCT of a left anterior descending artery (LAD) lesion. A: highly calcified plaque of the proximal LAD by CT. B: no significant stenosis or ischemia (FFR value 0.93) of the LAD by invasive angiography. C: FFRCT reveals high concordance and no ischemia in the vessel (FFRCT value 0.95). FFR: fractional flow reserve.
