Fig. 1

Measurement of time delay between pulse waves and aortic path length. Left: Through-plane velocity-encoded cardiac magnetic resonance at the mid-ascending (red circles) and mid-descending thoracic aorta (green circles). Middle: Corresponding flow measurement at the mid-ascending (red line) and mid-descending thoracic aorta (green line). Right: The measurement of aortic path length using a multiplanar reconstructed oblique sagittal view