Figure 1

Methodology for the computation of the spatiotemporal maps of pressure in the aorta. The top of the illustration represents the data workflow from a single frame, frame 4, which constitutes the fourth column in the spatiotemporal map, as indicated by the blue arrow. The horizontal lines in the spatiotemporal map correspond to specific plane locations in the aorta, which are defined at the level of the pulmonary artery (the two continuous lines), before and after the great vessels of the arch, and the descending in line with the mitral annulus. These planes divide the aortic anatomy in regions: the ascending aorta (AA1, AA2), the arch and descending aorta (DA1, DA2).