The goal of this monocentric observationnal study is to describe the characteristics of the myocardial infarction scar in terms of transmurality in residual LVEF>35% patients.

The primary objective is to determine the frequency of the criterion "intramural scar ≥1.47cm2" (measured by MRI) in patients who presented with myocardial infarction with residual LVEF≥35%.

Inclusion Criteria:

• Age ≥ 18 years ;
• History of acute coronary syndrome prior to inclusion and having undergone cardiac MRI;
• LVEF >35% measured at least 6 weeks post-IDM by echocardiography or MRI;

Exclusion Criteria:

- Patient with an implantable cardiac device (implantable cardioverter defibrillator or pacemaker) prior to MRI.

Patient with a history of acute coronary syndrome prior to inclusion and having undergone cardiac MRI and LVEF >35% measured at least 6 weeks post-IDM by echocardiography or MRI