Tests show that certain MRI machines may demagnetize the magnets used in cochlear implants to couple external and implanted components of these hearing devices, according to a report in the December issue of Otolaryngology--Head and Neck Surgery.
Cochlear implants may be an option for those with severe hearing loss. It involves a surgical procedure in which a small electronic device is placed under the skin behind the ear and attached to a wire that stimulates the inner ear, allowing the recipient to hear useful sounds.
Cochlear implants also contain internal magnets used to connect an external processor with the surgically implanted components, Dr. Omid Majdani, of the Medical University of Hannover, Germany, and colleagues explain. These magnets can interact with other magnets, such as those found in magnetic resonance imaging (MRI) machines. MRIs exert strong magnetic fields that may induce voltages or temperatures that could damage the implant or harm the patient.
source: >Newsmax.com
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment