Optimum excitation of phases and amplitudes in a phased array hyperthermia system

Nikita, KS; Maratos, N; Uzunoglu, NK

dc.contributor.author	Nikita, KS	en
dc.contributor.author	Maratos, N	en
dc.contributor.author	Uzunoglu, NK	en
dc.date.accessioned	2014-03-01T01:08:59Z
dc.date.available	2014-03-01T01:08:59Z
dc.date.issued	1992	en
dc.identifier.issn	0265-6736	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10779
dc.subject	PHASED ARRAY	en
dc.subject	OPTIMIZATION	en
dc.subject	TREATMENT PLANNING	en
dc.subject.classification	Oncology	en
dc.subject.classification	Radiology, Nuclear Medicine & Medical Imaging	en
dc.subject.other	article	en
dc.subject.other	electromagnetic radiation	en
dc.subject.other	excitation	en
dc.subject.other	heat treatment	en
dc.subject.other	mathematical model	en
dc.subject.other	theory	en
dc.subject.other	treatment planning	en
dc.subject.other	Algorithms	en
dc.subject.other	Biophysics	en
dc.subject.other	Blood Circulation	en
dc.subject.other	Body Temperature	en
dc.subject.other	Electromagnetic Fields	en
dc.subject.other	Human	en
dc.subject.other	Hyperthermia, Induced	en
dc.subject.other	Models, Biological	en
dc.subject.other	Models, Structural	en
dc.title	Optimum excitation of phases and amplitudes in a phased array hyperthermia system	en
heal.type	journalArticle	en
heal.identifier.primary	10.3109/02656739209037989	en
heal.identifier.secondary	http://dx.doi.org/10.3109/02656739209037989	en
heal.language	English	en
heal.publicationDate	1992	en
heal.abstract	In order to achieve a desired temperature distribution inside and outside of malignant tissues, optimization techniques could be used in phased array hyperthermia systems to control effectively the amplitude and phase of the radiating elements. The optimization of a four-element phased array hyperthermia system operating at 432 MHz is examined theoretically. The proposed technique is based on a detailed physical model of the tissue medium to be heated in terms of both electromagnetic and thermal properties. A penalty function technique using a Newton method is applied to determine the optimum phases and amplitudes of the array. Several array geometries have been studied and numerical results are presented.	en
heal.publisher	TAYLOR & FRANCIS LTD	en
heal.journalName	International Journal of Hyperthermia	en
dc.identifier.doi	10.3109/02656739209037989	en
dc.identifier.isi	ISI:A1992JC27200011	en
dc.identifier.volume	8	en
dc.identifier.issue	4	en
dc.identifier.spage	515	en
dc.identifier.epage	528	en