Additional file 4 of Functional assessment of bioprosthetic mitral valves by cardiovascular magnetic resonance: An in vitro validation and comparison to Doppler echocardiography

Additional file 4: Video S4 and Video S5. depict phase contrast images of a normal bioprosthetic valve from long- axis and short-axis views, respectively. Both views are used to ensure that flow volume is measured at the level of the prosthetic leaflet tips.