If you're having an MRI (Magnetic Resonance Imaging) for the first time, it's natural to wonder what will happen during the scan. The good news is that an MRI is a safe, painless, and non-invasive procedure. It uses a powerful magnet and radio waves to create detailed images of the inside of your body without using radiation.
Knowing what to expect can help you feel more relaxed and confident on the day of your appointment.
Step-by-Step: What Happens During the MRI
Step 1: You Will Lie on the MRI Table
Once you're ready, the MRI technologist will ask you to lie down on a padded table. Depending on the part of your body being scanned, you may lie on your back, side, or stomach.
Pillows or cushions may be used to help you stay comfortable during the scan.
Step 2: A Coil May Be Placed Around the Body Part
For many MRI scans, a special device called a coil is placed around the area being examined, such as your head, knee, shoulder, or spine.
The coil helps the MRI machine capture clear and detailed images. It does not cause pain or touch your body tightly.
Step 3: The Table Moves Into the MRI Scanner
The MRI table slowly slides into the scanner until the body part being examined is in the correct position.
The MRI machine is open at both ends, and the staff will make sure you are comfortable before the scan begins.
Step 4: You Need to Stay Still
During the scan, it is very important to remain as still as possible. Even small movements can blur the images and may require part of the scan to be repeated.
The technologist will tell you when the scan starts and when it is finished.
Step 5: You Will Hear Loud Noises
As the MRI machine works, it makes loud tapping, knocking, humming, or buzzing sounds. These noises are completely normal and are part of the imaging process.
To make you more comfortable, you may receive:
- Earplugs
- Headphones
- Music (at some MRI centers)
Step 6: You Can Communicate With the Staff
Although the MRI technologist will be in a nearby control room, they will monitor you throughout the scan. They can:
- See you through a window or camera.
- Talk to you using an intercom.
- Hear you if you need assistance.
Many MRI machines also have a call button that you can press if you feel uncomfortable.
Step 7: You May Be Asked to Hold Your Breath
For some MRI scans, especially those of the chest or abdomen, you may be asked to hold your breath for a few seconds. The technologist will tell you exactly when to breathe normally again.
Step 8: Contrast Dye May Be Used
Some MRI scans require a contrast dye to help certain organs, blood vessels, or tissues appear more clearly.
If contrast is needed:
- A small IV is inserted into your arm or hand.
- The dye is injected before or during the scan.
- Most people do not experience any side effects.
Your MRI team will explain everything before giving the contrast.
Duration and Comfort
How Long Does an MRI Scan Take?
The length of the scan depends on the body part being examined. Most MRI scans take 15 to 60 minutes. Some detailed scans may take a little longer.
Is an MRI Painful?
No. An MRI is not painful. You will not feel the magnetic field or radio waves. The only challenge for some people is lying still for several minutes. If you feel anxious or uncomfortable, let the MRI staff know. They are trained to help you feel at ease.
What Happens After the MRI?
Once the scan is complete:
- The table moves out of the scanner.
- The technologist helps you off the table.
- You can usually get dressed and go home.
- If you received sedation, you will need someone to drive you home.
- A radiologist will review your MRI images and send a report to your doctor, who will discuss the results with you.
Tips for a Smooth MRI Scan
To make your MRI experience easier:
- Stay as still as possible.
- Follow the technologist's instructions.
- Wear comfortable clothing without metal.
- Remove all jewellery and metal accessories.
- Tell the staff if you feel anxious or claustrophobic.
Final Thoughts
An MRI scan is a simple, safe, and painless procedure that helps doctors diagnose many medical conditions. During the scan, you will lie on a table that moves into the MRI machine, remain still while images are taken, and hear loud tapping sounds. The MRI staff will monitor you throughout the procedure and ensure your comfort. Knowing what happens during an MRI can help reduce anxiety and make your first scan a more comfortable experience.