Abstract
Despite timely and technically successful interventional treatment of acute myocardial infarction with ST elevations by primary percutaneous coronary intervention (pPCI) with restoration of normal flow through the coronary artery, myocardial perfusion does not normalize in many patients, most often due to microvascular obstruction (MVO). This is associated with an increased risk of heart failure and death, even independently of the size of the heart attack site (1).
However, MVO is not the only cause of these serious complications. Thanks to the new imaging possibilities of cardiac magnetic resonance (Cardiovascular Magnetic Resonance - CMR), the importance of early diagnosis of an even more serious degree of myocardial damage - intramyocardial hemorrhage (IMH) (2) is increasingly coming into the center of attention.