MRI Scan (Magnetic Resonance Imaging)
What is an MRI scan?
An MRI scan uses a strong magnetic field and radio waves to produce detailed images of the body’s internal structures, without using any radiation. It is especially useful for viewing soft tissues like the brain, spinal cord, muscles, ligaments, and internal organs.
MRI provides a clearer picture than CT in certain conditions and is completely non-invasive.
What is it used for?
An MRI scan can help detect or diagnose:
- Brain and spinal cord abnormalities
- Joint injuries (ACL tears, herniated discs)
- Tumors and cysts
- Liver and kidney conditions
- Heart and vascular diseases
- Inflammatory or autoimmune disorders
What to Expect
MRI scans usually last 30–60 minutes. During the scan:
- You’ll lie on a flat table that slides into a large tube-like MRI machine.
- The machine makes loud tapping or knocking noises (earplugs or headphones are usually provided).
- You must lie completely still to ensure accurate images.
- In some cases, contrast dye (gadolinium) may be used to enhance image clarity.
Unlike CT, MRI is safe for repeated use as it does not expose you to ionizing radiation.
Safety Considerations
Due to the powerful magnets, you must inform your doctor or technologist if you have:
- Metal implants (pacemakers, cochlear implants, etc.)
- Metal fragments in your body
- Claustrophobia (open MRI or sedation may be options)