As we’ve discussed in a previous blog, MRI scans are incredibly useful diagnostic tools. They can help detect everything from stroke damage to slipped discs— and can provide detailed images of everything in between. One of the major benefits of MRI is that it does not expose the patient to ionizing radiation. However, patients who have metallic implants or tattoos should never have an MRI— this type of scan uses extremely strong magnets to record and create images. Here are a few reasons you might need an MRI.