Coronary artery angiography would be performed within 5 days of detecting a rise in TnT in the study population as well as the control group. The amount of calcium in the vessel wall can be automatically quantified and the plaque can be evaluated as calcified, non-calcified or of mixed composition. The amount of calcium in the vessel wall can be automatically quantified and the plaque can be evaluated as calcified, non-calcified or of mixed composition. The coronary CTA examinations will be analyzed independently by 2 experienced readers who are blinded to all clinical information.