Fig. 11
From: Imaging in Transcatheter Aortic Valve Replacement (TAVR): role of the radiologist
A 66-year-old male with aortic stenosis. a Steady-state free precession MR image at peak systole in coronal plane shows hypointense jets in the aortic root (white arrows), which result from dephasing of turbulently flowing blood, consistent with haemodynamically significant aortic valve stenosis. b Steady-state free precession MR image at peak systole in short axis plane of aortic valve shows a tricuspid aortic valve with valve leaflet thickening because of sclerosis and/or calcifications (white arrows). c Planimetry in the short axis plane of the aortic valve at peak shows maximal valve opening of 0.86 cm², consistent with severe aortic valve stenosis. MR imaging is particularly useful for TAVR candidates with renal failure since necessary measurements can be obtained without administration of gadolinium