An evaluation of various analytic reconstruction algorithms and implementations for 2D and 3D PET

Dinelle, K; Thielemans, K; Tsoumpas, Ch; Spinks, TJ

dc.contributor.author	Dinelle, K	en
dc.contributor.author	Thielemans, K	en
dc.contributor.author	Tsoumpas, Ch	en
dc.contributor.author	Spinks, TJ	en
dc.date.accessioned	2014-03-01T02:49:42Z
dc.date.available	2014-03-01T02:49:42Z
dc.date.issued	2004	en
dc.identifier.issn	10957863	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34698
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-23844515021&partnerID=40&md5=b2042986cf64787d0d067c5c98200e3b	en
dc.subject.other	Algorithms	en
dc.subject.other	Computer software	en
dc.subject.other	Image quality	en
dc.subject.other	Interpolation	en
dc.subject.other	Positron emission tomography	en
dc.subject.other	Scanning	en
dc.subject.other	Thermal noise	en
dc.subject.other	Back projectors	en
dc.subject.other	Reconstruction methods	en
dc.subject.other	Sinograms	en
dc.subject.other	Spatial resolution	en
dc.subject.other	Image reconstruction	en
dc.title	An evaluation of various analytic reconstruction algorithms and implementations for 2D and 3D PET	en
heal.type	conferenceItem	en
heal.publicationDate	2004	en
heal.abstract	Effects of the application, and implementation, of various reconstruction algorithms to 2D and 3D PET data were studied. Results were compared based on the performance of each method when subjected to the NEMA performance tests for resolution, scatter correction accuracy, and uniformity. An independent measurement of the coefficient of variation for a uniform cylinder was also made. Resulting data was reconstructed using each of the ECAT 7.1, STIR, and ECAT 7.2 software packages. Two implementations of the STIR software were investigated, STIR-INT1 which backprojects the original sinograms, and STIR-INT2 which first interpolates the sinograms to have equal bin and voxel sizes. Behaviour of the spatial resolution and CV in terms of varying pixel size was attributed to both the method of backprojector implementation and the reconstruction algorithm (FORE vs. 3DRP). An understanding of the method for reconstruction is important in understanding image quality, and selecting a pixel size for clinical use. © 2004 IEEE.	en
heal.journalName	IEEE Nuclear Science Symposium Conference Record	en
dc.identifier.volume	7	en
dc.identifier.spage	4043	en
dc.identifier.epage	4047	en