Ferreira-Neto AN, et al. - Researchers investigated how clinical outcomes (mortality, heart failure [HF] hospitalization) after transcatheter aortic valve implantation (TAVI) could be influenced by aortic regurgitation (AR) as determined by cardiovascular magnetic resonance (CMR). Overall 448 TAVI recipients were recruited from 2 centers (mean age: 80±7 years, mean STS: 5.8±5.4%). The participants had survived the periprocedural period with no pacemaker implantation. Mortality and HF hospitalization were independently predicted by aortic regurgitation fraction (RF) as determined by CMR. The rate of moderate-severe CMR-AR (defined as a RF ≥30%) was 3%, and an increased risk of mortality and HF hospitalization was observed in relation to this. CMR was shown to have clinical utility for assessing AR severity after TAVI, especially in doubtful cases or those with discordances between echocardiography and clinical data.