Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/1885
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dc.contributorDepartment of Electronic and Information Engineering-
dc.creatorLau, CH-
dc.creatorFeng, DD-
dc.creatorHutton, BF-
dc.creatorLun, PKD-
dc.creatorSiu, WC-
dc.date.accessioned2014-12-11T08:25:35Z-
dc.date.available2014-12-11T08:25:35Z-
dc.identifier.issn0278-0062 (print)-
dc.identifier.issn1558-254X (online)-
dc.identifier.urihttp://hdl.handle.net/10397/1885-
dc.language.isoenen_US
dc.publisherInstitute of Electrical and Electronics Engineersen_US
dc.rights© 1998 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_US
dc.rightsThis material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.en_US
dc.subjectCoincidence detectionen_US
dc.subjectEmission tomographyen_US
dc.subjectPETen_US
dc.subjectSPECTen_US
dc.subjectTracer kinetic modelingen_US
dc.titleDynamic imaging and tracer kinetic modeling for emission tomography using rotating detectorsen_US
dc.typeJournal/Magazine Articleen_US
dc.description.otherinformationAuthor name used in this publication: Dagan Fengen_US
dc.description.otherinformationAuthor name used in this publication: Daniel Pak-Kong Lunen_US
dc.description.otherinformationCentre for Multimedia Signal Processing, Department of Electronic and Information Engineeringen_US
dc.identifier.spage986-
dc.identifier.epage994-
dc.identifier.volume17-
dc.identifier.issue6-
dc.identifier.doi10.1109/42.746631-
dcterms.abstractWhen performing dynamic studies using emission tomography the tracer distribution changes during acquisition of a single set of projections. This is particularly true for some positron emission tomography (PET) systems which, like single photon emission computed tomography (SPECT), acquire data over a limited angle at any time, with full projections obtained by rotation of the detectors. In this paper, an approach is proposed for processing data from these systems, applicable to either PET or SPECT.-
dcterms.abstractA method of interpolation, based on overlapped parabolas, is used to obtain an estimate of the total counts in each pixel of the projections for each required frame-interval, which is the total time to acquire a single complete set of projections necessary for reconstruction. The resultant projections are reconstructed using traditional filtered backprojection (FBP) and tracer kinetic parameters are estimated using a method which relies on counts integrated over the frame-interval rather than instantaneous values. Simulated data were used to illustrate the technique’s capabilities with noise levels typical of those encountered in either PET or SPECT. Dynamic datasets were constructed, based on kinetic parameters for fluoro-deoxy-glucose (FDG) and use of either a full ring detector or rotating detector acquisition. For the rotating detector, use of the interpolation scheme provided reconstructed dynamic images with reduced artefacts compared to unprocessed data or use of linear interpolation. Estimates for the metabolic rate of glucose had similar bias to those obtained from a full ring detector.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationIEEE transactions on medical imaging, Dec. 1998, v. 17, no. 6, p. 986-994-
dcterms.isPartOfIEEE transactions on medical imaging-
dcterms.issued1998-12-
dc.identifier.isiWOS:000078592900013-
dc.identifier.scopus2-s2.0-0032216612-
dc.identifier.pmid10048855-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
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