Serial Coronary CTA-based Plaque Progression Detection for Management of Coronary Heart Disease

This study uses repeat heart CT scans over time to track how plaque builds up in the coronary arteries of people with known mild coronary artery disease, to improve treatment decisions. **You may be eligible if...** - You are between 18 and 80 years old - You have known non-obstructive coronary artery disease (diagnosed at least 2 years ago) - You are willing to have a follow-up heart CT scan **You may NOT be eligible if...** - You have had a heart attack, stent placement, or bypass surgery - You have had a major cardiovascular event - You have already had a follow-up heart CT scan or coronary angiogram since your initial diagnosis - You have severe liver or kidney problems - You have a contraindication to CT scanning (such as contrast dye allergy) - Your original CT images were poor quality Talk to your doctor to see if this trial is right for you.