Edda Bahlmann et al. JIMG 2010;3:555-562 Difference Between AVAI and ELI in Relation to AS Severity Unadjusted aortic valve area by continuity equation (pink boxes) and adjusted for pressure recovery (green boxes) in the study population grouped into tertiles of peak transaortic velocity. Boxes represent 25th to 75th percentiles within groups, and horizontal and vertical lines represent median and range, respectively. AVAI = aortic valve area index; ELI = energy loss index; other abbreviation as in Figure 1. Edda Bahlmann et al. JIMG 2010;3:555-562 American College of Cardiology Foundation