The exposimetric study on the radiofrequency exposures caused by the use of medical devices

The use of electromagnetic field (EMF) in the medical applications is an area of various technologies. This work examines the applicability of the radiofrequency exposimeters (RFExs) in the identification and evaluation of radiofrequency EMF exposures in the indoor medical environments. It was experimentally confirmed that inter-device differences in the sensitivity to continuous sinusoidal EMF are at the level of their calibration uncertainty and that inside the MRI chamber RFExs at FM band may be used in monitoring of pulsed modulated EMF exposure from 3T MRI scanner. Inside MRI chamber, it was also found by multi-band REFxs recordings that the emission from wireless link (WiFi) between medical devices and emission from MRI scanner may be the subject to multi-path propagation producing localized hot spots of EMF level.