Fig. 3
From: Vascular CT and MRI: a practical guide to imaging protocols
a Three-dimensional segmented volume rendered (VR) image of the thoracic aorta with b standard sites of measurement. a Sinuses of Valsalva, b sinotubular junction, c ascending thoracic aorta, d aortic arch, between origin of left common carotid and left subclavian arteries, e descending thoracic aorta, f aortic hiatus