MRI (Magnetic Resonance Imaging)

MRI uses a strong magnetic field, radio waves, and computer technology to create highly detailed images of organs and tissues. Unlike CT scans, MRI does not use ionizing radiation. It is especially effective for examining:

• The brain and spinal cord for stroke, tumors, or multiple sclerosis.
• Joints and soft tissues for sports injuries or degenerative disease.
• Heart and blood vessels for congenital defects, inflammation, or blockages.
• Organs such as the liver, kidneys, uterus, and prostate.

• Remove all metallic items, including jewelry, belts, piercings, and hearing aids. Inform your provider if you have implanted devices such as pacemakers, aneurysm clips, or cochlear implants, as some are not MRI-compatible.
• For certain studies, you may need to fast for 4–6 hours, especially if contrast dye will be used.
• Tell your doctor if you have kidney disease, are pregnant, or suffer from claustrophobia. Sedation or open MRI scanners may be options if you feel anxious in enclosed spaces.

You will lie on a narrow table that slides into the MRI scanner, which is a large tube-shaped magnet. The scan is painless, but the machine produces loud tapping or thumping noises, so you’ll be provided with earplugs or headphones. The technologist may ask you to remain very still or briefly hold your breath to improve image quality.

If contrast (gadolinium) is required, it will be injected into a vein, sometimes producing a cool sensation in the arm. Most MRI exams last 30–60 minutes, though some specialized scans take longer.

• Magnet safety: The strong magnetic field can interfere with or dislodge some metal implants or fragments. Always notify your care team about any prior surgeries or metallic objects in your body.
• Contrast risks: Gadolinium is generally safe, but in rare cases may cause allergic reactions or, in patients with severe kidney problems, a condition called nephrogenic systemic fibrosis.
• Claustrophobia: Some patients may feel anxious inside the scanner. Mild sedatives or open MRI units can help.

A radiologist will review the images in detail and send a report to your doctor. Your provider will discuss what the results mean for your diagnosis or treatment plan. In many cases, MRI results guide important decisions such as surgery, medical therapy, or continued monitoring.