Non invasive imaging has always had a pivotal rote in cardiology.The first cardiac MRI (CMR) assessments were performed in the 1980s, when the technique was time consuming and of limited use.Recent developments within the last 5 years have enabled CMR to become a rapid, reliable and accurate clinical tool which is both well validated and calibrated complementing other non invasive cardiac imaging.It also benefits from the lack of ionising radiation a compared to PET or nuclear imaging techniques.