Are MRIs Safe?

MRI (Magnetic Resonance Imaging) is considered one of the safest medical imaging modalities available. Unlike X-rays and CT scans, MRI does not use ionizing radiation. Instead, it uses magnetic fields and radio waves to produce detailed images of internal body structures.

No Radiation Exposure

This is one of the most significant safety advantages of MRI. Because MRI uses magnetism rather than radiation, there is no cumulative radiation exposure, making it safe to perform multiple times over a patient's lifetime when clinically indicated.

Who Should Not Have an MRI?

While MRI is safe for most people, certain conditions require special consideration:

• Cardiac pacemakers and ICDs: Older pacemakers are not MRI-compatible. Newer MRI-conditional devices may be scanned with specific protocols. Always disclose your device to our staff.
• Metal implants: Some metal implants can heat or move in a magnetic field. Most modern orthopedic implants are MRI-compatible, but always inform our team of any implants.
• Cochlear implants: These devices are generally incompatible with standard MRI and require physician consultation.
• First trimester pregnancy: MRI is generally avoided during the first trimester unless medically necessary. It is considered safe in the second and third trimesters and is preferred over X-ray during pregnancy when imaging is required.
• Severe claustrophobia: Patients with significant anxiety in enclosed spaces should inform us in advance. Options may include medication, open-bore MRI, or other accommodations.

MRI Contrast (Gadolinium) Safety

Some MRI scans use an intravenous contrast agent called gadolinium to enhance image quality. Gadolinium is generally well-tolerated, but patients with severe kidney impairment may face an elevated risk. If contrast is planned for your scan, our staff will review your kidney function and medical history beforehand.

Noise and Comfort

MRI machines produce loud knocking and tapping sounds during the scan. This is normal and caused by the magnetic gradients. We provide earplugs or headphones to all patients. The scanner does not touch you, and our staff monitors you throughout the entire procedure.