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Full 3D-OSEM reconstruction with compressed response of the system

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dc.affiliation.dptoUC3M. Departamento de Bioingenieríaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Biomedical Imaging and Instrumentation Groupes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: BSEL - Laboratorio de Ciencia e Ingeniería Biomédicaes
dc.contributor.authorHerraiz López, J.
dc.contributor.authorEspaña, Samuel
dc.contributor.authorVaquero López, Juan José
dc.contributor.authorDesco Menéndez, Manuel
dc.contributor.authorUdías, José Manuel
dc.date.accessioned2011-09-20T12:17:35Z
dc.date.available2011-09-20T12:17:35Z
dc.date.issued2004
dc.descriptionProceeding of: Nuclear Science Symposium Conference Record, 2004 IEEE, Rome ,16-22 Oct. 2004
dc.description.abstractSmall animal PET scanners require high spatial resolution (< 1 mm) and good sensitivity. To obtain high resolution images, iterative reconstruction methods, like OSEM, applied to image reconstruction in three-dimensional (3D) positron emission tomography (PET), have superior performance over analytical reconstruction algorithms like FBP. However, the high computational cost of iterative methods remains a serious drawback to their development and clinical routine use. The increase in performance of current computers should make iterative image reconstruction fast enough to attain clinical viability. However, dealing with the large number of probability coefficients for the response of the system in high-resolution PET scanners becomes a difficult task that prevents the algorithms from reaching peak performance. Taking into account all possible axial, in-plane and other symmetries, we have reduced the storage needs what allows us to store the whole response of the system in dynamic memory of ordinary industry standard computers, so that the reconstruction algorithm can achieve near peak performance.
dc.format.mimetypeapplication/pdf
dc.identifier.bibliographicCitationNuclear Science Symposium Conference Record, 2004, vol. 5, p. 2952 - 2956
dc.identifier.doi10.1109/NSSMIC.2004.1466305
dc.identifier.isbn0-7803-8701-5 (online)
dc.identifier.isbn0-7803-8700-7 (print)
dc.identifier.issn1082-3654
dc.identifier.publicationfirstpage2952
dc.identifier.publicationlastpage3654
dc.identifier.publicationtitleNuclear Science Symposium Conference Record
dc.identifier.publicationvolume5
dc.identifier.urihttps://hdl.handle.net/10016/12116
dc.language.isoeng
dc.publisherIEEE
dc.relation.eventdateOctober 16-22, 2004
dc.relation.eventplaceRome
dc.relation.eventtitleNuclear Science Symposium Conference Record, 2004 IEEE
dc.relation.publisherversionhttp://dx.doi.org/10.1109/NSSMIC.2004.1466305
dc.rights© IEEE
dc.rights.accessRightsopen access
dc.subject.ecienciaBiología y Biomedicina
dc.titleFull 3D-OSEM reconstruction with compressed response of the system
dc.typeconference paper*
dspace.entity.typePublication
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