Figure 3.

Cardiac Magnetic Resonance 4-Chamber Long View Post-Mitral Valve Repair

Imaging reveals obliteration of the right ventricular cavity with smooth left ventricular myocardium and moderately to severely dilated atria. Perfusion scan demonstrates thin linear chronic hypoenhancement (arrows), suggestive of chronic linear thrombus or scar in the setting of endomyocardial fibrosis. This was also retroactively noted on previous cardiac magnetic resonance 4 years earlier and was the likely culprit for failure to capture a leadless pacemaker.