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
We present faraday cage attenuation measurements on eleven MRI systems, to assess the need to replace the cage when replacing/upgrading an MRI system. 
Figure 1 - Faraday cage attenuation measurements of eleven clinical MRI systems: measurements were acquired at 65MHz, 128MHz and 297MHz at the magnet room door, console room window and penetration panel. Box and whisker plots adjacent to the data show the median in red, interquartile range within the box, whilst the whiskers show the range of data excluding outliers, which are indicated with a red cross.
Figure 2 - Summary of RF attenuation measurements in eleven clinical MRI systems