What Is Contrast-Enhanced Magnetic Resonance Imaging (MRI)?

A magnetic resonance imaging (MRI) scan is a technique used by radiologists and cardiologists to create a picture of the heart to see if it is working correctly. The scan does not use X-rays; rather, it uses powerful magnets and radio waves to create images of the heart. The images of the heart can be improved by using contrast agents to enhance the picture. Special contrast agents (also called  dyes) are injected into the patient’s arm while the MRI machine is taking a picture of the heart.

When the contrast agent reaches the heart, it “lights up” the inside of the heart chambers. This makes it easier for doctors to see the structures inside of the heart. MRIs are helpful for identifying patients with irreversible heart damage. Damage appears as very bright areas on the scan.