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 Hand^1,2, 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.