MRI Cardiac (Heart)

 

What is it?

MRI (magnetic resonance imaging) of the heart does not use X-ray radiation. It instead uses a powerful magnetic system to make images of the heart and its blood vessels. It can create dozens or sometimes hundreds of images in a short time. It is sometimes done in conjunction with a chest MRI. A heart MRI can identify and check tumors, growths, heart muscle, birth defects and heart failure.

What is it for?

It is sometimes done in conjunction with a chest MRI. A heart MRI can identify and check tumors, growths, heart muscle, birth defects and heart failure.

It can evaluate conditions that also include:

  • Aneurysms of the heart
  • Clogged heart arteries
  • Congenital heart disease
  • Congestive heart failure
  • An enlarged heart
  • Heart valve disease
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How to prepare

  • Talk to your health care provider about your medical history, current medical condition, medicines you are taking and any allergies you have
  • You will be asked if you have any implanted medical devices. Implanted medical devices can malfunction or cause problems during an MRI.
  • You will be given instructions about what to eat and drink prior to an MRI

Risks

  • An allergic reaction may occur from the use of a contrast material (dye)
  • The strong magnetic fields can cause pacemakers and other implants to malfunction
  • Metal inside your body may be moved or shifted slightly because of the magnetic fields
  • An MRI is not recommended if you are pregnant, as it can cause a harmful increase in the temperature of the amniotic fluid

What happens during?

  • You may be given a sedative to help you relax
  • If a contrast material is used, an I.V. will be started in your hand or arm. Contrast material assists in seeing precise imaging pictures.
  • You may feel some discomfort or a cold feeling at the I.V. site where the contrast material is injected
  • You will lie on a movable table that slides into the MRI machine
  • Pillows or straps will be used to keep you still. Limiting your movement is important to getting the most precise images.
  • The technologist is in a separate room but you will be in sight of the technologist and be able to communicate.
  • Once the scan is completed, the table will be moved from the MRI machine

What happens after?

  • If sedatives were used to help you relax, you will be required to rest until the sedatives have worn off
  • You will be checked for an allergic reaction from the contrast material
  • You can usually resume your normal diet and activities after returning home

Side effects

  • You should notify your health care provider if there is any pain, redness or swelling at the I.V. site. This could be an infection caused by the I.V.