Objectives: * To show that the intervention is non-inferior to the control with regards to clinical outcomes * To show superiority of the intervention with regards to clinical outcomes Study design: National multicenter prospective randomized controlled trial. Study population: Patients with suspected stable CAD. Intervention: upfront CTCA to diagnose CAD and guide optimal medical therapy (OMT). Patients with obstructive CAD and refractory angina despite OMT will undergo non-invasive ischemia imaging to guide revascularization. Control: Standard of care. Diagnosis and treatment are at the discretion of the attending cardiologist. Main study end point: Composite of all-cause mortality and non-fatal myocardial infarction.