Foot Disorders: Numb toes may be caused by disorders of the foot and gait. People having flat feet or high arches may experience numbness in the toes from inflammation and irritation caused by stress when walking. Toe numbness is also cause by problems with the joints of the toes like arthritis and avascular necrosis.
But just as with the issue of image disruption, donât assume that the presence of an electrical conductor inside your body is an automatic contraindication for an MRI exam. Consult your radiologist. For these reasons, it is important to identify all electrically conductive materials on or in the patient.
The MRI machine itself contains a large magnet. Hydrogen atoms (i.e., protons) in the brain rotate themselves to a particular orientation with respect to the magnet. The MRI machine records the radio frequencies emitted by the hydrogen atoms. MRI scanning results in high-resolution structural images of the brain.