Hirasawa K, vanRosendael PJ, Fortuni F, et al. - The present study was performed to evaluate the prognostic implications of a multidetector-row computed tomography (MDCT) staging system of severe aortic stenosis (AS) in patients undergoing transcatheter aortic valve implantation (TAVI). Researchers recruited a total of 405 patients (80 ± 7 years, 52% men) who had undergone full-beat MDCT prior to TAVI. They classified the extent of cardiac damage by MDCT and classified into five categories; Stage 0 (no cardiac damage), Stage 1 (left ventricular damage), Stage 2 (left atrium and mitral valve damage), Stage 3 (right atrial damage), and Stage 4 (right ventricular damage). In severe AS, the MDCT-based staging system of cardiac damage effectively distinguishes the patients who are at higher risk of death after TAVI.