Fig. 4

TTE and 4D Flow CMR assessment of moderate aortic regurgitation. a 4-chamber colour Doppler transthoracic echo (TTE) demonstrating aortic regurgitation jet and b TTE continuous wave Doppler demonstrating pressure half time consistent with moderate aortic regurgitation. c is a four-dimensional flow streamline visualisation of aortic regurgitation in left ventricular diastole. d is pathline visualization of flow reversal in the early diastole in the descending aorta. e is a reformatted c at aortic valve level flow quantification. f is the reformatted plane at the descending aorta level flow quantification