Hi George,
Several of these implants have tiny magnets within and thus will be very strongly affected by the strayfield around a magnet. In worst case the (device) magnet will be dislocated and the function of the device will be abolished. Cochlear is one manufacturer of these devices and you will find the specific conditions (MRI) on their web-page. If the student remains outside the 0.5 mT strayfield limit around the magnet I believe that she will be perfectly safe and happy. So she could very well be operating the NMR-scanner, but I would not let her change samples.
73, Peter
> On 3 Nov 2015, at 20:08, George Furst <furst_at_sas.upenn.edu> wrote:
>
> Hi
>
> We have a student with a cochlear implants she is not allowed to have mri’s . Does anyone have experience with such students in nmr lab ,she would be using unshielded 500 and 360 Mhz machines.
> On first principles I do not plan to let her use the nmr.
>
> Thanks for advice
>
> George
> .
> George T, Furst; Ph.D.
> Assoc. Director Tech. Facilities
> Director NMR Lab
> Department of Chemistry
> School of Arts and Sciences
> University of Pennsylvania
> 231 S.34th St.
> Philadelphia ,Pa 19104
> Ph 215-898-3407
> furst_at_sas.upenn.edu <mailto:furst_at_sas.upenn.edu>
>
>
Peter Lundberg, PhD, Professor
University of Linköping and University Hospital of Linköping Radiation Physics and CMIV
Postal address:
Peter Lundberg
Radiation Physics
University Hospital of Linköping
S-581 85 Linköping, Sweden
Mail peter.lundberg_at_liu.se
Ph +46-(0)10 - 103 2790
On MR-Education
http://edunmrsoft.wordpress.com/
Received on Tue Nov 03 2015 - 09:34:49 MST