The Next Leap in Cardiac Magnetic Resonance Imaging:Cycling the Field

Inclusion Criteria: * Participant who is willing and able to give informed consent for participation in the study * Healthy volunteers willing to give informed consent for participation in the study * Patients diagnosed with a previous myocardial infarction Exclusion Criteria: * Unwillingness to participate * Claustrophobia * Contraindication to MRI scanning such as implantable cardiac devices * Participants who have had a previous myocardial infarction in the past of which they may not be aware and this is discovered whilst being scanned on the 3T MRI scanner, or who may have any other cardiology condition that they were previously unaware will not be included in the healthy control group, even if they present themselves to us as "healthy" at the time of the study visit * Pregnancy * Body habitus that may preclude comfortable positioning of the volunteer in either of the MRI scanners (\>50cm in diameter) * Participants with abnormal kidney function that will preclude them from receiving a contrast agent