What is Magnetic Resonance Imaging (MRI) Test

Magnetic resonance imaging (MRI) is a test that creates pictures of organs and tissue in the body using a huge magnet, radio waves, and a computer. The heart is visualized in this scenario.

The MRI machine is huge and cylindrical in design. It generates a powerful magnetic field that encircles the body. Some MRI scanners are more open than others.

The hydrogen protons in your body are aligned by the magnetic field. The protons are then knocked out of place by the radio waves. They send out radio signals when they realign back into the appropriate place. The signals are received by a computer, which translates them into bodily pictures. This picture is seen on a computer monitor. When studying organs or soft tissues, an MRI may be utilized instead of a CT scan.

Why is a Cardiac MRI Performed?

If your doctor suspects you're at risk for heart failure or other less serious cardiac conditions, he or she may prescribe a cardiac MRI. Cardiac magnetic resonance imaging (MRI) is a frequent diagnostic used to examine and diagnose a variety of diseases.

Here are a few examples:

⦁ cardiac abnormalities that are present at birth

⦁ damage to the coronary arteries caused by a heart attack

⦁ failure of the heart

⦁ heart valve problems inflammation of the heart's membrane (pericarditis)

Because MRIs depict cross-sections of the body, they can aid in the explanation or clarification of the results of other tests such as CT scans and X-rays.

The dangers of magnetic resonance imaging (MRI) of the heart

An MRI carries no hazards and has minimal if any, negative effects.

The test does not involve ionizing radiation, and the radio and magnetic waves it employs have had no recorded negative effects to far. Allergic responses to the color are quite uncommon.

Because an MRI employs magnets, you may not be able to undergo one if you have a pacemaker or any other type of metal device from past operations or accidents.

Before the test, make sure to notify your doctor if you have any implants.

What should I do to Prepare for an MRI?

EAT/DRINK: For most MRI tests, you may eat, drink, and take medicines as normal. Certain limits apply to some specialty MRI examinations. When you arrange your exam with Johns Hopkins Medical Imaging, you will get extensive preparation instructions.

DRESS: You must change entirely into a patient gown and secure all personal possessions. You will be given a locker to keep your belongings in. Any piercings should be removed, and all jewelry and valuables should be left at home.

EXPECTATIONS: Imaging takes place inside a huge tube-like structure that is open on both ends. For high-quality photos, you must lie totally motionless. Earplugs are essential and will be given due to the MRI machine's strong loudness.

ALLERGY: If you've had an allergic response to contrast that necessitated medical attention, speak with your ordering physician to get the prescription you need. This will most likely be taken by mouth a day, half a day, and two hours before the assessment.

ANTI-ANXIETY Medicine: If you need anti-anxiety medication for claustrophobia, get a prescription from your ordering physician. Please keep in mind that you will require another person to drive you home.

It's critical to let them know if any of the following apply to you when you call to schedule an appointment:

⦁ You have a pacemaker or your heart valves have been changed.

⦁ You have an insulin pump or another form of implanted pump.

⦁ You have coils, filters, stents, or clips in your vessel.

⦁ You're pregnant or suspect you're pregnant.

⦁ Do you have any piercings on your body?

⦁ You're wearing a patch with a drug on it.

⦁ You have tattoos or permanent eyeliner.

⦁ Have you ever been hit by a bullet?

⦁ Have you ever worked with metal before?

⦁ Metallic pieces can be found throughout your body.

⦁ You can't lie down for more than 30 minutes.