Assessment of local RF-induced heating of AIMDs during MR exposure

Author

Zastrow, Earl ; Cabot, Eugenia ; Kuster, Niels

Author_Institution

IT´IS Found., Zurich, Switzerland

fYear

2014

fDate

16-23 Aug. 2014

Firstpage

1

Lastpage

4

Abstract

Patients with active implantable medical devices (AIMDs) are generally excluded from magnetic resonance imaging (MRI) diagnostics because the interaction of the AIMD with MRI-induced radiofrequency (RF) electromagnetic fields (EMFs) can lead to hazardous localized heating in surrounding tissues. In this work, two safety assessment methods, based on Tiers 3 and 4 of the Technical Specification ISO/IEC 10974, for a generic AIMD, for which a cardio application is assumed, are implemented, and the results from the assessments are illustrated.

Keywords

biological tissues; biomedical MRI; biomedical equipment; biothermics; cardiology; pacemakers; MRI exposure; MRI-induced radiofrequency electromagnetic fields; Technical Specification ISO/IEC 10974; Tiers 3; Tiers 4; active implantable medical devices; cardio application; generic AIMD; hazardous localized heating; local RF-induced heating assessment; magnetic resonance imaging diagnostics; surrounding tissues; Biomedical imaging; Computational modeling; Electric fields; Heating; Implants; Magnetic resonance imaging; Radio frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI

Conference_Location

Beijing

Type

conf

DOI

10.1109/URSIGASS.2014.6930111

Filename

6930111