Cardiac MRI

What is a Cardiac MRI? How does it work?

A cardiac MRI captures photos of the heart and blood vessels with the use of a magnet and radio waves. The images from the cardiac MRI will show if there is damage to a certain area of the heart, the structure of the heart, and the function of the heart. These images also show the heart’s chambers and valves which helps make a diagnosis.

Some reasons a doctor orders a cardiac MRI include:

• Cardiomyopathy - heart muscle becomes thick and weakened
• Congenital heart disease - defects in the fetus heart
• Coronary heart disease - narrowing of the coronary arteries caused by the buildup of fatty materials called plaque
• Heart failure - heart muscle is weak and can’t pump enough blood to the body
• Heart valve disease - when heart valves become damaged, they can block flow in the heart

What happens during a Cardiac MRI?

The cardiac MRI machine is made up of a bench, which moves in and out of a large tube that opens at both the head and feet. It is controlled by a technician from another room The cardiac MRI machine is controlled by a technician from another room using a remote control. The technician will communicate with the patient via microphone, giving instructions while the pictures are being taken.

A cardiac MRI is noninvasive and does not require a surgical incision. The process can take anywhere from 30 to 90 minutes.

Prior to getting a cardiac MRI, it is important to notify the doctor of any metal implants from past surgeries and to remove all jewelry or clothing with metal clasps/buttons, as magnets attract metals.