Figure 1

PWV quantification was performed using a tool implemented in the software Segment (Segment, version 1.9, R3918; {{a href='http://segment.heiberg.se/'}}http://segment.heiberg.se{{/a}}). A: path length of the aortic arch (aortic length = AL) which is the distance between the section through the ascending aorta (AA) and through the proximal descending aorta (AD). B: Region of interest (ROI) in the AA and in the AD in the aortic velocity maps. C: Flow curves along with their respective calculated tangents Transit Time. PWV = AL/TT.