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Biological mitral valve thrombosis. (A) 3D TEE appearance of the LA and LV of a normal MV prosthesis compared with (C) a thrombosis of an MV prosthesis. Thickening and obstruction of the valve are clearly shown by 3D TEE imaging and confirmed by thickening and thrombosis at 2D TEE (B) associated with a marked increase in the mean diastolic gradient (D). MV, mitral valve; TEE, transesophageal echocardiography.
