Fig. 6

a Cardiac MR performed for a patient 4 days post-primary percutaneous coronary intervention. Short-axis EGE sequence at mid-ventricular level shows a sub-endocardial inferior and infero-septal left ventricular wall low signal corresponding to microvascular obstruction. b Corresponding short-axis LGE sequence showing transmural inferior and infero-septal left ventricular wall hyperenhancement/infarct with central low signal microvascular obstruction. Culprit lesion was detected at RCA. c Corresponding short-axis T1W LGE sequence with post-processing of the LV scar (green) and MVO (yellow) revealing an MVO size = 9% and infarct size = 27% of the total left ventricular mass (LVM). Follow-up short-axis LGE sequence, after 3 months, showing transmural inferior and sub-endocardial infero-septal left ventricular wall fibrosis scar with complete resolution of the MVO