Non-invasive and Invasive Assessment of Coronary Artery Disease (COMFORT)

Inclusion Criteria:

1. Patients with stable angina pectoris with low to intermediate pre-test likelihood of CAD;
2. no previous history of CAD;
3. obstructive stenosis (≥50% luminal narrowing) on MSCT coronary angiography; 4.informed consent.

Exclusion Criteria:

1. patients with a previous history of CAD;
2. patients with contraindications for MSCT: a.cardiac rhythms other than sinus rhythm, b.pregnancy, c.allergy for contrast medium, d.renal failure (estimated glomerular filtration rate (eGFR) < 50ml/min), e.resting heart rate >75 bpm plus contra-indications for beta-blockade, f. weight >100 kilograms;
3. contraindications for cardiac magnetic resonance (CMR) imaging: a.MR-incompatible implants, b. Claustrophobia, c. contraindications for adenosine: i. known or suspected hypersensitivity to adenosine, ii. known or suspected bronchoconstrictive or bronchospastic disease, iii. 2nd or 3rd degree atrioventricular (AV) block, iv. Sinus bradycardia (heart rate < 45 bpm), v. Systemic arterial hypotension (<90 mmHg). d. contraindications for gadolinium: i. renal failure (estimated eGFR <30 ml/min);
4. no informed consent.