Fig. 1From: Evaluation of the safety and efficacy of a novel Anatomical classification and dUal anchoRing theory to Optimize the tavR strategy for pure severe Aortic regurgitation (AURORA): a prospective cohort studyUnique aortic root morphological characteristics of pure aortic regurgitation compared to calcified aortic stenosis. Lack of a calcified landing level is a main challenge for TAVR in pure aortic regurgitation patients (A); Calcified spots of native aortic stenosis provide anchoring level for transcatheter heart valve in TAVR procedure (B). TAVR = transcatheter aortic valve replacementBack to article page