Three-dimensional transthoracic echocardiography. Apical view of the left ventricle: red lines mark both sides of the inflow cannula. The thrombus attached at the bottom side of the cannula is marked in green: the thrombus is not wedging into the cannula, excluding a pre-pump thrombosis. AML=anterior mitral leaflet; Ao=aortic valve; PML=posterior mitral leaflet