Noninvasive focused monitoring and irradiation of head tissue phantoms at microwave frequencies

Karathanasis, KT; Gouzouasis, IA; Karanasiou, IS; Giamalaki, MI; Stratakos, G; Uzunoglu, NK

dc.contributor.author	Karathanasis, KT	en
dc.contributor.author	Gouzouasis, IA	en
dc.contributor.author	Karanasiou, IS	en
dc.contributor.author	Giamalaki, MI	en
dc.contributor.author	Stratakos, G	en
dc.contributor.author	Uzunoglu, NK	en
dc.date.accessioned	2014-03-01T01:33:55Z
dc.date.available	2014-03-01T01:33:55Z
dc.date.issued	2010	en
dc.identifier.issn	1089-7771	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20619
dc.subject	Focused monitoring	en
dc.subject	Hyperthermia	en
dc.subject	Microwave radiometry	en
dc.subject	Noninvasive irradiation	en
dc.subject	Phantoms	en
dc.subject.classification	Computer Science, Information Systems	en
dc.subject.classification	Computer Science, Interdisciplinary Applications	en
dc.subject.classification	Mathematical & Computational Biology	en
dc.subject.classification	Medical Informatics	en
dc.subject.other	Area of interest	en
dc.subject.other	Areas of interests	en
dc.subject.other	Conductivity measurements	en
dc.subject.other	Conductivity variation	en
dc.subject.other	Contact less	en
dc.subject.other	Electromagnetic energy	en
dc.subject.other	Ellipsoidal cavity	en
dc.subject.other	Focused microwaves	en
dc.subject.other	Human volunteers	en
dc.subject.other	Hyperthermia	en
dc.subject.other	Local variations	en
dc.subject.other	Main module	en
dc.subject.other	Matching layer	en
dc.subject.other	Microwave radiometry	en
dc.subject.other	Penetration depth	en
dc.subject.other	Radiometric temperature	en
dc.subject.other	Temperature increase	en
dc.subject.other	Tissue phantom	en
dc.subject.other	Electromagnetic waves	en
dc.subject.other	Hybrid systems	en
dc.subject.other	Hyperthermia therapy	en
dc.subject.other	Irradiation	en
dc.subject.other	Monitoring	en
dc.subject.other	Radiometers	en
dc.subject.other	Radiometry	en
dc.subject.other	Microwave irradiation	en
dc.title	Noninvasive focused monitoring and irradiation of head tissue phantoms at microwave frequencies	en
heal.type	journalArticle	en
heal.identifier.primary	10.1109/TITB.2010.2040749	en
heal.identifier.secondary	http://dx.doi.org/10.1109/TITB.2010.2040749	en
heal.identifier.secondary	5438814	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	In this study, new aspects of our research regarding a novel hybrid system able to provide focused microwave radiometric temperature and/or conductivity measurements and hyperthermia treatment via microwave irradiation are presented. On one hand, it is examined whether the system is capable of sensing real-time progressive local variations of temperature and/or conductivity in customized phantom setups; on the other hand, the focusing attributes of the system are explored for different positions and types of phantoms used for hyperthermia in conjunction with dielectric matching layers surrounding the areas of interest. The main module of the system is an ellipsoidal cavity, which provides the appropriate focusing of the electromagnetic energy on the area of interest. The system has been used for the past few years in experiments with different configuration setups including phantom, animal, and human volunteer measurements yielding promising outcome. The present results show that the system is able to detect local concentrated gradual temperature and conductivity variations expressed as an increase of the output radiometric voltage. Moreover, when contactless focused hyperthermia is performed, the results show significant temperature increase at specific phantom areas. In this case, the effect of the dielectric matching layers placed around the phantoms is critical, thus resulting in the enhancement of the energy penetration depth. © 2006 IEEE.	en
heal.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC	en
heal.journalName	IEEE Transactions on Information Technology in Biomedicine	en
dc.identifier.doi	10.1109/TITB.2010.2040749	en
dc.identifier.isi	ISI:000278538300014	en
dc.identifier.volume	14	en
dc.identifier.issue	3	en
dc.identifier.spage	657	en
dc.identifier.epage	663	en