Fig. 1.

(A) Non-electrocardiography (ECG)-gated contrast-enhanced computed tomography (CT) on day 12 showing a mass adjacent to the posterior mitral annulus. The cavity was poorly enhanced at this time. (B–D) An ECG-gated CT performed with a 64-slice CT scanner on day 48 clearly showing that the cavity was the pseudoaneurysm originating from the posterior annulus of the mitral prosthesis. Clear communication of the pseudoaneurysm and left ventricle was identified (white arrow in C). Ao, aorta; LA, left atrium; LV, left ventricle; P, pseudoaneurysm.