Everything you need to know before your first MRI

As you approach an appointment with medical imaging, it is important to be well informed on the process ahead to ensure a smooth appointment with a stress-free mindset. Knowing what to expect, how to prepare, and the importance of an MRI can help you get the most out of your MRI experience. 

What is an MRI?

Magnetic resonance imaging, or MRI, is an imaging technique used to capture detailed images of internal structures using radio waves and powerful magnets. These images are helpful in detecting diseases, diagnosing patients, and monitoring ongoing treatments. MRI is specifically helpful in detecting and diagnosing conditions that affect soft tissue.

How does an MRI work?

An MRI allows for the protons found in soft tissue to be magnetized by the strong magnetic field created during the scan. These magnetized protons then send echos in response to radio waves that are also created during the scan. A computer will then take the echoes and organize them into images. In some cases, an MRI might require a patient to be administered an IV of dye, or contrast, prior to the scan to allow the radiologist to see the areas of focus more clearly.

How to prepare for an MRI?

MRI scans, as with most other medical imaging, have some important things to consider prior to your appointment. Speaking with your doctor about this is the best way to ensure a smooth and successful MRI scan. 

• Due to the powerful magnetic field during an MRI scan, making your doctor aware of any metal devices or implants, both internal and external, is extremely important. Taking off removable metals like jewelry or eye glasses, and wearing clothing with no metal before your appointment is an important first step. Devices such as, and similar to, pacemakers, cochlear implants, and insulin pumps should never enter an MRI machine. For this reason, informing your doctor about internal and external devices is extremely important.

• Some MRI scans may require you to fast for at least 5 hours prior to your scan. Speaking with your doctor can help you determine whether this applies to your scan or not. 

• Informing your doctor if you are claustrophobic, pregnant, unable to sit still for the average 15 to 90 minute scan, or sensitive to loud noises will help ensure your doctor can make your MRI scan as successful and comfortable as possible. 

MRI scans are a painless procedure that can be a smooth and stress-free process through understanding the MRI scan and communicating with your doctor prior to your appointment.