Changes in CeMRI before and after CME in Group 1 and Group 2. Group 1: coronary microembolization with 120,000 microspheres. Group 2: coronary microembolization with 120,000 microspheres and pretreatment with methylprednisolone. Hyperenhancement was demonstrated at 6 h following CME in Group 1 (white arrow) but not in Group 2. One week after CME there was no evidence of hyperenhancement on CeMRI in Group 1.