Detection of coronary artery bypass graft patency by contrast enhanced magnetic resonance angiography1

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Abstract
Follow up of coronary artery bypass grafts (CABG) after coronary surgery is routinely performed by means of X-ray coronary angiography with the possibility of graft interventions like angioplasty or stenting. X-ray coronary angiography using ionizing radiation, is expensive, invasive and connected with the risk of severe complications. Contrast enhanced magnetic resonance angiography (MRA) is a recently implemented, non-invasive and fast imaging modality, although it requires a major technical equipment.