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Abstract #2627

Continuous monitoring of MRI staff exposure to stray magnetic field at 1.5 T and 3 T

Angelo Galante1,2,3, Valentino Vito3, Elia Braggio4, Roberta Milanesi4, Vincenzo Giugno5, and Marcello Alecci1,2,3
1Consiglio Nazionale Ricerche - Istituto SPIN, L'Aquila, Italy, 2Istituto Nazionale Fisica Nucleare - Laboratori Nazionali del Gran Sasso, L'Aquila, Italy, 3Università dell'Aquila, L'Aquila, Italy, 4Tecnorad SrL, Verona, Italy, 5Azienda Sanitaria Locale 1 - Abruzzo, L'Aquila, Italy


We show how to monitor the MRI staff exposure to the $$$B_0$$$ stray-field. Monitoring is extended to several body districts without interferences with normal hospital operative procedures. The Weighted Peak index is calculated, for different Action Levels limits as from the current EU regulations, to consider the non-sinusoidal nature of exposure. Results show that exposure limits are exceeded even at 1.5 T and their occurrences significantly increase at 3.0 T scanners.

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