Wall shear stress and pressure patterns in aortic stenosis patients with and without aortic dilation captured by high-performance image-based computational fluid dynamics
Fig 12
Wall pressure maps for the virtually restored case of TAVI0 at times 3QA, PF and QD.
Top row corresponds to restored flow with the same cardiac output (unstressed scenario) as the stenosis case, and the bottom row corresponds to a stressed scenario where cardiac output is doubled. It is seen that the regional zone of high wall pressure on the ascending aorta which was observed in the stenosis case is no longer present. The unstressed scenario shows an almost uniformly decaying pressure from ascending towards the descending aorta, but the stressed scenario shows an oscillatory behaviour, which is likely to be related to the helical wave footprints on wall shear stress maps for this case (see Fig 11).