Vulnerable Plaque Imaging in NSTEMI

Inclusion Criteria: * Prolonged symptoms suspected of cardiac origin (angina pectoris or angina equivalent), and presentation on the cardiac emergency department \<24 hours after symptom onset * Elevated levels of high-sensitivity troponin T (\>14ng/L; initial blood sample at presentation or a second sample 3 hours after presentation) * Only patients scheduled for invasive coronary angiography * Age 18 years - 85 years * Mentally competent * Informed written consent Exclusion Criteria: * Conservatively managed patients who are not scheduled for invasive coronary angiography * Refractory angina or on-going severe ischemia requiring immediate invasive coronary angiography * Patients requiring invasive coronary angiography \< 24 hours after admission * Hemodynamic instability and cardiogenic shock (mean arterial pressure \< 60 mmHg) * Severe heart failure (Killip Class ≥ III) * ST elevation myocardial infarction (ST-elevation in 2 contiguous leads: ≥0.2mV in men or ≥0.15 mV in women in leads V2-V3 and/or ≥0.1 mV in other leads or new left bundle branch block) * Chest pain highly suggestive of non-cardiac origin (as judged by the cardiac emergency department physician/cardiologist): * (Suspicion of) acute aortic dissection, acute pulmonary embolism, acute peri-myocarditis * Life threatening arrhythmias on the cardiac emergency department or prior to presentation (sustained ventricular tachycardia, repetitive non-sustained ventricular tachycardia, ventricular fibrillation, sino-artial or atrio-ventricular block) * Atrial fibrillation with ventricular rate ≥100 beats per minute (bpm) * Tachycardia (≥100/bpm) * Angina pectoris secondary to anaemia (\<5.6 mmol/L), untreated hyperthyroidism, or severe hypertension (\>200/110 mmHg) * More than mild aortic and mitral valve calcification or stenosis by latest echocardiography * Pregnancy * Breast feeding women * Life expectancy \<2 years (malignancy, etc.) * Refusal of data storage until 15 years after end of study * Participation in another investigational study that has not reached its primary endpoint * Contraindications to cardiac magnetic resonance imaging