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Abstract #3042

Modeling Occupational Exposure to RF and Gradient Fields Associated with an Interventional Procedure in an Open 1 T MR System

Yan Li1, Jeff Hand1,2, Andreas Christ3, Eugenia Cabot3, Donald McRobbie4, Myles Capstick3, Michael Oberle3, Niels Kuster3

1Imaging Sciences Dept, Clinical Sciences Centre, Hammersmith Hospital, Imperial College London, London, UK; 2Radiological Sciences Unit, Imperial College Healthcare Trust , London, UK; 3Foundation for Research on Information Technology in Society, Zurich, Switzerland; 4Radiological Sciences Unit, Imperial College Healthcare Trust, London, UK

Occupational exposure to electromagnetic fields within the frequency range 0 ≤ f ≤ 300 GHz is currently attracting attention in European Union member states where legislation regarding exposure limits is pending. In particular, these limits may restrict some MR procedures. In this work we investigate the use of numerical dosimetry to assess occupational exposure to RF and gradient fields associated with an interventional procedure carried out in an open 1 T scanner and for which previous field measurements suggested that exposure to fields exceeding action values would occur.