Scientists have found that scans taken via magnetic imaging devices, such as 3T MRI machines, should be a strict "no-no" for patients with cochlear implants as these contribute to the demagnetization of the patient's implant.
A cochlear implant is an electronic device that restores partial hearing to the deaf. It is surgically implanted in the inner ear and activated by a device worn outside the ear.
Magnetic Resonance Imaging
Encyclopedia section of medindia gives general info about Magnetic Resonance Imaging
Advertisement
Conducted by a team of German and American researchers, the study tested several cochlear device magnets on a 3T MRI scanner with active shielding at a variety of angles (0º, 80º, 90º, 100º, 110º, and 180º).
It was found that during routine use of 3T MRI machines at angles above 80º, demagnetization reached an unacceptable level.
This led to permanent damage to devices with non-removable magnets, and thus created the potential of exposing patients to undesirable magnetic forces.
![Anatomy of Ear and Hearing - Animation]( "Anatomy of Ear and Hearing - Animation")
Ear converts sound waves into electrical impulses that are transmitted to the temporal lobe of the brain through the auditory nerve. It consists of outer, inner and middle sections.
3T MRI scanners are the next generation of MRI scanners and are significantly more powerful than 1.5T MRI scanners.
Keeping in mind the findings of the study, authors have suggested that MRI scans on patients with cochlear implants should be performed using a 3T MRI machine only if a 1.5T machine is not available, and if the benefits of the scan far outweigh the risk of cochlear implant demagnetization.
The study is published in the latest issue of Otolaryngology - Head and Neck Surgery.
Source: ANI
TAN
This led to permanent damage to devices with non-removable magnets, and thus created the potential of exposing patients to undesirable magnetic forces.
Anatomy of Ear and Hearing - Animation
Ear converts sound waves into electrical impulses that are transmitted to the temporal lobe of the brain through the auditory nerve. It consists of outer, inner and middle sections.
Advertisement
3T MRI scanners are the next generation of MRI scanners and are significantly more powerful than 1.5T MRI scanners.
Keeping in mind the findings of the study, authors have suggested that MRI scans on patients with cochlear implants should be performed using a 3T MRI machine only if a 1.5T machine is not available, and if the benefits of the scan far outweigh the risk of cochlear implant demagnetization.
The study is published in the latest issue of Otolaryngology - Head and Neck Surgery.
Source: ANI
TAN
Deaf Awareness Week 2007
This week, September 24th- 30th is celebrated worldwide as the Deaf Awareness Week.
Advertisement
 Researchers Propose New Method to Reverse Hearing LossAn international team of researchers from Switzerland and South Africa proposes a new method to overcome hearing deficits. | Advertisement
|
Advertisement
Recommended Readings
Latest Research News
The discovery deepens our understanding of m6A biology and stress granule formation, with implications for neurodegenerative diseases.
Trouble with sleep and the body's clock may increase your risk for Parkinson's, as per a new study.
New study uncovers a link between nocturnal hot flashes and Alzheimer's risk in menopausal women, suggesting a potential biomarker.
Our discovery revealed that a minority of individuals attributed their chronic pain to their brain's involvement.
Relative Energy Deficiency in Sport syndrome is overlooked by athletes and can be worsened by 'sports culture' due to its perceived short-term performance benefits.
