CMR features | Aneurysm | Pseudoaneurysm |
Anatomic localization | Apical or anterior | Posterior or inferior |
Neck | Wide | Narrow |
Neck/mounth ratio | 0.9 - 1 | 0.25 - 0.5 |
Contractility | Dyskinesia | Akinesia |
Appearance in viability imaging | Enhancement in the wall of sac corresponding to scarred myocardium | Enhancement of overlying pericardium |