This clinical study examines patients presenting with acute myocardial infarction and no significant coronary artery disease on coronary angiography (MINOCA) and patients with MINOCA-mimics with advanced CMR. The present study aims to: * assess the microvascular function with a novel quantitative 3D myocardial perfusion imaging approach in the acute phase and post-convalescence * refine the role and diagnostic potential of advanced quantitative CMR imaging * assess the potential prognostic significance of microvascular dysfunction and epicardial adipose tissue on cardiovascular outcomes Participants will undergo advanced CMR imaging in the acute setting (within 10 days after event) and post convalescence (after 3 months).