Occupational exposure to electro-magnetic fields in MRI: a survey of working practices from 1 T-7 T

INTRODUCTION: The formulation of EU Directive 2004/40/EC (1) has focussed attention on the issue of occupational exposure in MRI. Whilst the EU’s attempts to regulate occupational exposure to electro-magnetic (EM) fields is new, the underlying exposure guidance has been in existence since 1998. This work represents an attempt to identify specific MR-related work activities which may exceed the Action Values (AV) or ICNIRP Reference Values.