A 61-year-old male patient with cardiovascular risk factors (hypertension, current smoker) presented with chest pain to the emergency department. Non-STEMI (ST elevation myocardial infarction) was diagnosed based on typical complaints and a significant rise in cardiac troponins. No electrocardiographic abnormalities were observed. Patient was pain-free after admission. As part of an observational study, after obtaining informed consent, dynamic cardiac CT perfusion was performed before invasive coronary angiography. Cardiac CT included coronary CTA (CTCA) and dynamic CT stress perfusion after intravenous administration of adenosin.