Novel methodology to characterize electromagnetic exposure of the brain

Crespo-Valero, P; Christopoulou, M; Zefferer, M; Christ, A; Achermann, P; Nikita, KS; Kuster, N

dc.contributor.author	Crespo-Valero, P	en
dc.contributor.author	Christopoulou, M	en
dc.contributor.author	Zefferer, M	en
dc.contributor.author	Christ, A	en
dc.contributor.author	Achermann, P	en
dc.contributor.author	Nikita, KS	en
dc.contributor.author	Kuster, N	en
dc.date.accessioned	2014-03-01T01:36:30Z
dc.date.available	2014-03-01T01:36:30Z
dc.date.issued	2011	en
dc.identifier.issn	0031-9155	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21316
dc.subject.classification	Engineering, Biomedical	en
dc.subject.classification	Radiology, Nuclear Medicine & Medical Imaging	en
dc.subject.other	Application examples	en
dc.subject.other	Brain tissue	en
dc.subject.other	Cell phone	en
dc.subject.other	Central nervous systems	en
dc.subject.other	Electromagnetic exposure	en
dc.subject.other	Electromagnetic sources	en
dc.subject.other	Epidemiological studies	en
dc.subject.other	Finite difference time domain simulations	en
dc.subject.other	High resolution	en
dc.subject.other	Human Model	en
dc.subject.other	Human study	en
dc.subject.other	Key issues	en
dc.subject.other	Labeling scheme	en
dc.subject.other	Medical diagnostics	en
dc.subject.other	Nonuniform field	en
dc.subject.other	Novel methodology	en
dc.subject.other	Radio frequencies	en
dc.subject.other	Talairach atlas	en
dc.subject.other	Electromagnetic field effects	en
dc.subject.other	Electromagnetic fields	en
dc.subject.other	Finite difference time domain method	en
dc.subject.other	Telecommunication equipment	en
dc.subject.other	Dosimetry	en
dc.title	Novel methodology to characterize electromagnetic exposure of the brain	en
heal.type	journalArticle	en
heal.identifier.primary	10.1088/0031-9155/56/2/007	en
heal.identifier.secondary	http://dx.doi.org/10.1088/0031-9155/56/2/007	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	Due to the greatly non-uniform field distribution induced in brain tissues by radio frequency electromagnetic sources, the exposure of anatomical and functional regions of the brain may be a key issue in interpreting laboratory findings and epidemiological studies concerning endpoints related to the central nervous system. This paper introduces the Talairach atlas in characterization of the electromagnetic exposure of the brain. A hierarchical labeling scheme is mapped onto high-resolution human models. This procedure is fully automatic and allows identification of over a thousand different sites all over the brain. The electromagnetic absorption can then be extracted and interpreted in every region or combination of regions in the brain, depending on the characterization goals. The application examples show how this methodology enhances the dosimetry assessment of the brain based on results obtained by either finite difference time domain simulations or measurements delivered by test compliance dosimetry systems. Applications include, among others, the detailed dosimetric analysis of the exposure of the brain during cell phone use, improved design of exposure setups for human studies or medical diagnostic and therapeutic devices using electromagnetic fields or ultrasound. © 2011 Institute of Physics and Engineering in Medicine Printed in the UK.	en
heal.publisher	IOP PUBLISHING LTD	en
heal.journalName	Physics in Medicine and Biology	en
dc.identifier.doi	10.1088/0031-9155/56/2/007	en
dc.identifier.isi	ISI:000285743000009	en
dc.identifier.volume	56	en
dc.identifier.issue	2	en
dc.identifier.spage	383	en
dc.identifier.epage	396	en