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

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dc.contributor.author Herraiz López, J.
dc.contributor.author España, Samuel
dc.contributor.author Vaquero López, Juan José
dc.contributor.author Desco Menéndez, Manuel
dc.contributor.author Udías, José Manuel
dc.date.accessioned 2011-09-20T12:17:35Z
dc.date.available 2011-09-20T12:17:35Z
dc.date.issued 2004
dc.identifier.bibliographicCitation Nuclear Science Symposium Conference Record, 2004, vol. 5, p. 2952 - 2956
dc.identifier.isbn 0-7803-8701-5 (online)
dc.identifier.isbn 0-7803-8700-7 (print)
dc.identifier.issn 1082-3654
dc.identifier.uri http://hdl.handle.net/10016/12116
dc.description Proceeding of: Nuclear Science Symposium Conference Record, 2004 IEEE, Rome ,16-22 Oct. 2004
dc.description.abstract Small 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.mimetype application/pdf
dc.language.iso eng
dc.publisher IEEE
dc.rights © IEEE
dc.title Full 3D-OSEM reconstruction with compressed response of the system
dc.type bookPart
dc.type conferenceObject
dc.relation.publisherversion http://dx.doi.org/10.1109/NSSMIC.2004.1466305
dc.subject.eciencia Biología y Biomedicina
dc.identifier.doi 10.1109/NSSMIC.2004.1466305
dc.rights.accessRights openAccess
dc.relation.eventdate October 16-22, 2004
dc.relation.eventplace Rome
dc.relation.eventtitle Nuclear Science Symposium Conference Record, 2004 IEEE
dc.identifier.publicationfirstpage 2952
dc.identifier.publicationlastpage 3654
dc.identifier.publicationtitle Nuclear Science Symposium Conference Record
dc.identifier.publicationvolume 5
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