Passive multi-frequency brain imaging and hyperthermia irradiation apparatus: The use of dielectric matching materials in phantom experiments

Gouzouasis, I; Karathanasis, K; Karanasiou, I; Uzunoglu, N

dc.contributor.author	Gouzouasis, I	en
dc.contributor.author	Karathanasis, K	en
dc.contributor.author	Karanasiou, I	en
dc.contributor.author	Uzunoglu, N	en
dc.date.accessioned	2014-03-01T01:31:37Z
dc.date.available	2014-03-01T01:31:37Z
dc.date.issued	2009	en
dc.identifier.issn	0957-0233	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19854
dc.subject	Deep brain hyperthermia	en
dc.subject	Ellipsoidal beam former	en
dc.subject	Focused microwave radiometry	en
dc.subject	Multiband radiometric receiver	en
dc.subject	Phantom experiments	en
dc.subject	Temperature monitoring	en
dc.subject.classification	Engineering, Multidisciplinary	en
dc.subject.classification	Instruments & Instrumentation	en
dc.subject.other	Deep brain hyperthermia	en
dc.subject.other	Ellipsoidal beam former	en
dc.subject.other	Focused microwave radiometry	en
dc.subject.other	Multiband radiometric receiver	en
dc.subject.other	Phantom experiments	en
dc.subject.other	Temperature monitoring	en
dc.subject.other	Electric grounding	en
dc.subject.other	Electromagnetic waves	en
dc.subject.other	Experiments	en
dc.subject.other	Hybrid computers	en
dc.subject.other	Hybrid systems	en
dc.subject.other	Microwaves	en
dc.subject.other	Phase interfaces	en
dc.subject.other	Radiometers	en
dc.subject.other	Radiometry	en
dc.subject.other	Temperature sensors	en
dc.subject.other	Dielectric materials	en
dc.title	Passive multi-frequency brain imaging and hyperthermia irradiation apparatus: The use of dielectric matching materials in phantom experiments	en
heal.type	journalArticle	en
heal.identifier.primary	10.1088/0957-0233/20/10/104022	en
heal.identifier.secondary	http://dx.doi.org/10.1088/0957-0233/20/10/104022	en
heal.identifier.secondary	104022	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	In this paper a hybrid system able to provide focused microwave radiometry and deep brain hyperthermia is experimentally tested. The system's main module is an ellipsoidal conductive wall cavity which acts as a beam former, focusing the electromagnetic energy on the medium of interest. The system's microwave radiometry component has extensively been studied theoretically and experimentally in the past few years with promising results. In this work, further investigation concerning the improvement of the hybrid system's focusing properties is conducted. Specifically, microwave radiometry and hyperthermia experiments are performed using water phantoms surrounded by dielectric layers used as matching material to enhance detection/penetration depth and spatial resolution. The results showed that the dielectric material reduces the reflected electromagnetic energy on the air-phantom interface, resulting in improved temperature resolution and higher detection or penetration of the energy when microwave radiometry and hyperthermia are applied respectively. © 2009 IOP Publishing Ltd.	en
heal.publisher	IOP PUBLISHING LTD	en
heal.journalName	Measurement Science and Technology	en
dc.identifier.doi	10.1088/0957-0233/20/10/104022	en
dc.identifier.isi	ISI:000269874900023	en
dc.identifier.volume	20	en
dc.identifier.issue	10	en