Magnetic Resonance Imaging (MRI) Cardiovascular Magnetic Resonance Imaging (MRI) Te | Page 2

started. Patients will be asked to hold their breath multiple times during the exam. A typical
scan lasts 45 to 60 minutes but may last up to 90 minutes, depending on the complexity of
the medical problem.
Why are these tests performed?
Cardiovascular MRI tests are used to:
• Differentiate between diseased or abnormal myocardial tissue and normal tissue.
• Diagnose and evaluate a variety of congenital abnormalities.
• Evaluate the patient for possible shunting using flow velocity mapping techniques.
• Diagnose diseases of the aorta including dissection, aneurysms, and coarctation.
• Diagnose and grade valve disorders.
• Diagnose cardiac infiltrative diseases such as myocarditis, sarcoidosis, and amyloidosis.
• Aid in diagnosing the type, size, and location of cardiac tumors.
How will I feel during the test?
Most patients tolerate the scan very well. A few patients become uncomfortable during the
scan, as staying still for a long period of time can be challenging. If you are claustrophobic,
please let us know as soon as possible, so that we can try to provide special instructions.
If contrast dye is ordered, it should not make you feel any different. The scan technician
will talk to you throughout the scan and always be with you.
How long does the test take?
The test usually lasts 45 to 90 minutes, with most being completed in about an hour. It may
last a little longer depending on the patient’s heart rate and rhythm and the complexity of
the cardiac condition.
How do I get the results of my test?
After a cardiologist, or a radiologist with special training in CMR, has reviewed your test,
the results will be entered into your electronic medical record and sent electronically or by
fax to your physician. Your physician will have access to the results and will discuss them
with you.