Magnetic resonance imaging (MRI) uses a high-strength magnet and radio waves to scan the body and produce images or pictures. MRI does not use ionising radiation, which is required for many other types of imaging, and is not known to have any long-term harmful effects. Cardiac MRI is imaging relating to the heart and how it is working.
Most people are suited to MRI scanning, although there are some restrictions due to the strength of the magnet and its possible effects on devices or implants, such as pacemakers. The MRI machine is shaped like a small tunnel, and the bed on which you lie will move you inside the tunnel where the images are being taken. Occasionally, MRI scanning cannot be carried out if you are uncomfortable in enclosed spaces (claustrophobia).
Cardiac viability (perfusion and delay) MRI – This involves the injection of a contrast medium into a vein during the scan. The contrast medium highlights the heart muscle in areas receiving a good blood supply. Areas receiving less blood do not highlight as well as the good areas, which can be an indicator of ischaemic heart disease (undersupply of blood and oxygen to the heart).MRI Cardiac