Non-invasive cardiovascular imaging for evaluation of coronary artery bypass graft disease

摘要

Despite advances in surgical techniques and perioperative care, vein grafts continue to have high failure rates. Per-graft occlusion rates are estimated to be up to 25% during the first 12-18 months and 40-50% at 10 years after surgery. Graft occlusion is associated with increased risk of myocardial infarction and other co morbidities (1-2). High risk angioplasties are increasingly used after CABG, requiring accurate assessment of graft patency, progression of native disease and left ventricular function (1-3).