Information on Magnetic Resonance Imaging (MRI)
The importance of implant and MRI compatibility.
Magnetic resonance imaging (MRI) is a common medical imaging. MRI machines use powerful magnets to take detailed images of organs and tissues in the body. MRI is imaging that helps diagnose a variety of medical conditions.
Doctors can do much imaging, including MRI, X-ray, CT scan, PET scan, and ultrasound. Various shots are required to make multiple diagnoses. The advantage of MRI over other imaging techniques is that they can take detailed images of soft tissues and joints.
- MRI scans do not use x-rays or radiation, so they are generally very safe.
- MRI generally provides more precise images than CT scans, but MRI requires a longer time and is more inconvenient.
- Because powerful magnets are used, you cannot get an MRI if your body has certain types of metallic substances.
- In most MRI machines, a person enters a narrow tunnel, so some people are extremely anxious (obstructive phobia) and cannot be tested.
- Some MRI devices have a relatively large tunnel hole (“open MRI“) so people don’t struggle with it.
Why is the MRI needed?
Doctors may use an MRI instead of a CT scan when more details are needed to determine :
- Brain, spinal cord, muscle, and liver problems
- Problems with the female reproductive system
- Hip bone and pelvic fracture
- Joint problems, such as tears or sprains
- Bleeding or infection
Doctors may choose an MRI instead of a CT scan if:
You have had an allergic reaction to the type of contrast agent used for the CT scan (such as sneezing, rash, or breathing problems)
Pregnant (because CT scans emit radiation and MRI does not)
What Happens During an MRI Scan?
Before inspection
- Empty the contents of the pouch, remove jewelry, belts, and all other metal objects. You can wear the clothes you often wear.
- Sometimes doctors inject a solution (called a paramagnetic contrast agent) into a vein or joint. MRI contrast agents make certain areas of the body appear more clearly in the picture.
- If you are anxious about being surrounded by an MRI Scan device, doctors may give you medications to help you relax.
Under inspection
- Lie still on the test table as it moves into the large tube-shaped scanner.
- Doctors may ask you to use headphones or earplugs to stop the loud banging noise from the scanner.
- Your doctor may ask you to hold your breath at a certain point.
- The scan typically takes 20-60 minutes.
After inspection
- You can return to your daily activities.
About Author
