Figure 3
Aortic diameter measured from 3D multiplanar reformatted CMR. Aortic diameter was obtained as the maximum diameter of the high intensity signal of the blood pool within the vessel lumen on 3D non-contrast enhanced, balanced steady state free precession CMR. No assumptions of circular anatomy were made. At the level of the aortic sinus, cusp-to-opposing-cusp diameters were obtained for the optimum diameter assessment as shown here for the aortic sinus in a patient with Turner syndrome and bicuspid aortic valve morphology.