Fig. 3

Results of the ascending aorta contour per scanner and software. Measurement results for every subject (1–8) at both scanners (MRI1, MRI2). The graphs allow the appreciation of variability between software programs and between the acquisitions at both CMR systems for each volunteer separately. Analyses included net, forward (forw.), and backward (backw.) stroke volume, peak flow, peak maximum and average (avg.) velocity, peak wall shear stress (WSS) per segment and contour, as well as area. Note the high variability of results between software solutions and scan-rescan for WSS