Why do you have to undress completely for an MRI brain scan?

You typically do not have to undress completely for a brain MRI; however, you may be asked to change into a hospital gown to avoid any metal on clothing that could interfere with the scan. Metal objects, including zippers and buttons, can distort the magnetic field and affect the imaging quality. It's important to follow the instructions provided by the medical staff to ensure a safe and effective procedure.