Will metal, cell phones, etc. that are sucked in by nuclear magnetic **** vibrations be radioactive?

Hello! Magnetic *** vibration and ultrasonography are two of the imaging means without radiation, so you don't have to worry about it being harmful to you. Magnetic *** vibration is to rely on a strong magnetic field to image, if you bring something metallic, it will affect the balance of the magnetic field, and ultimately may cause artifacts on the image (of course, the doctor can have the means to shield). When you go in and feel like you're being hit by an electric current, it could be that the magnetic **** vibration is picking up the hairbrush on your head. There's no other possibility.