Imaging of breast phantoms using a high-resolution position sensitive photomultiplier tube

Giokaris, ND; Loudos, GK; Maintas, D; Papapanagiotou, D; Nikita, KS; Uzunoglu, NK; Karabarbounis, A; Papanicolas, CN; Stiliaris, E; Archimandritis, SC; Varvarigou, AD; Stefanis, CN; Majewski, S; Weisen-Berger, A; Pani, R; Scopinaro, F

dc.contributor.author	Giokaris, ND	en
dc.contributor.author	Loudos, GK	en
dc.contributor.author	Maintas, D	en
dc.contributor.author	Papapanagiotou, D	en
dc.contributor.author	Nikita, KS	en
dc.contributor.author	Uzunoglu, NK	en
dc.contributor.author	Karabarbounis, A	en
dc.contributor.author	Papanicolas, CN	en
dc.contributor.author	Stiliaris, E	en
dc.contributor.author	Archimandritis, SC	en
dc.contributor.author	Varvarigou, AD	en
dc.contributor.author	Stefanis, CN	en
dc.contributor.author	Majewski, S	en
dc.contributor.author	Weisen-Berger, A	en
dc.contributor.author	Pani, R	en
dc.contributor.author	Scopinaro, F	en
dc.date.accessioned	2014-03-01T02:42:16Z
dc.date.available	2014-03-01T02:42:16Z
dc.date.issued	2003	en
dc.identifier.issn	0168-9002	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30899
dc.subject	""Hot"" spot	en
dc.subject	Breast phantoms	en
dc.subject	High resolution	en
dc.subject	Maximum likelihood	en
dc.subject	PSPMT	en
dc.subject	Sensitivity	en
dc.subject.classification	Instruments & Instrumentation	en
dc.subject.classification	Nuclear Science & Technology	en
dc.subject.classification	Physics, Particles & Fields	en
dc.subject.classification	Spectroscopy	en
dc.subject.other	Biological organs	en
dc.subject.other	Gamma rays	en
dc.subject.other	Optical resolving power	en
dc.subject.other	Phosphors	en
dc.subject.other	Photomultipliers	en
dc.subject.other	Breast phantoms	en
dc.subject.other	Mammography	en
dc.title	Imaging of breast phantoms using a high-resolution position sensitive photomultiplier tube	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1016/S0168-9002(02)01904-6	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0168-9002(02)01904-6	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	The results of studies conducted with a small field of view gamma camera based on a Position Sensitive Photomultiplier Tube (PSPMT) and a pixelized scintillator crystal, made of CsI(TI), are reported. Using a computer-controlled step motor allowing object rotation, projection data from several angles are acquired. Images of slices of the object are obtained and compared with the use of a Filtered Backprojection and a Maximum Likelihood algorithm. Phantom studies have shown a spatial resolution of 2-3 mm in both two and three dimensions, and mice experiments have shown successful SPECT imaging of small organs. 31) images obtained from a paraffin cylinder phantom and from a Tc-99m water solution phantom showed that a "hot" spot with a size down to 0.2ml can be detected with a resolution of about 2 mm if the tumor to background activity ratio is 6: 1. (C) 2002 Elsevier Science B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment	en
dc.identifier.doi	10.1016/S0168-9002(02)01904-6	en
dc.identifier.isi	ISI:000180900800022	en
dc.identifier.volume	497	en
dc.identifier.issue	1	en
dc.identifier.spage	141	en
dc.identifier.epage	149	en