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Abstract #3546

A Survey of Faraday Cage Attenuation Measurements of Clinical MRI Systems 

Francesco Padormo1, Joe Martin1, Jane Ansell1, Elizabeth Gabriel1, Laurence H. Jackson1, Caitlin O'Brien1, Simon Shah1, David Price1, and Geoff Charles-Edwards1
1Guy's & St Thomas' NHS Foundation Trust, London, United Kingdom

Manufacturers typically specify new MRI systems to have a minimum Faraday Cage (FC) attenuation of 90-100dB at the resonant frequency. Anecdotal observations have suggested that systems can operate successfully with FC attenuation levels below this specification. We present a survey of attenuation measurements across eleven systems in order to gain insight into realistic values on systems in routine clinical use.

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