MRI
Magnetic Resonance Imaging is a diagnostic imaging technique that uses a powerful magnetic field, radio waves, and a computer to create detailed images of the inside of the body. Here's what happens during an MRI:
Preparation: Before the MRI, you'll be asked to remove any metal objects from your body, including jewelry, watches, and clothing with metal zippers or buttons. You may also be asked to change into a hospital gown. If you have any medical devices or implants, such as a pacemaker or cochlear implant, you'll need to inform the technician.
Positioning: You'll lie down on a table that slides into the MRI machine, which looks like a large tube. The technician will help you get comfortable and position you correctly for the scan. You'll be given a call button that you can use to speak to the technician if you need anything during the scan.
Scanning: The MRI machine will begin to make a series of loud, knocking noises as the scan begins. You'll need to lie still during the scan, which can take anywhere from a few minutes to an hour or more, depending on the area being scanned and the number of images needed. The technician will give you earplugs or headphones to block out the noise.
Contrast agent (optional): In some cases, the technician may inject a contrast agent into your vein to make certain tissues or blood vessels show up more clearly in the images. If this is necessary, the technician will explain the procedure to you and answer any questions you may have.
Completion: Once the scan is complete, the table will slide out of the machine and you'll be helped off the table. You can return to your normal activities right away.
After the scan, a radiologist will interpret the images and send a report to your doctor, who will discuss the results with you.