One-pass list-mode EM algorithm for high-resolution 3-D PET image reconstruction into large arrays

2.50
Hdl Handle:
http://hdl.handle.net/10541/84339
Title:
One-pass list-mode EM algorithm for high-resolution 3-D PET image reconstruction into large arrays
Authors:
Reader, Andrew J; Ally, S; Manavaki, Roido; Walledge, R J; Jeavons, A P; Julyan, Peter J; Zhao, Sha; Hastings, David L; Zweit, Jamal
Abstract:
High-resolution three-dimensional (3-D) positron emission tomography (PET) scanners with high count rate performance, such as the quad-high density avalanche chamber (HIDAC), place new demands on image reconstruction algorithms due to the large quantities of high-precision list-mode data which are produced. Therefore, a reconstruction algorithm is required which can, in a practical time frame, reconstruct into very large image arrays (submillimeter voxels, which range over a large field of view) whilst preferably retaining the precision of the data. This work presents an algorithm which meets these demands: one-pass list-mode expectation maximization (OPL-EM) algorithm. The algorithm operates directly on list-mode data, passes through the data once only, accounts for finite resolution effects in the system model, and can also include regularization. The algorithm performs multiple image updates during its single pass through the list-mode data, corresponding to the number of subsets that the data have been split into. The algorithm has been assessed using list-mode data from a quad-HIDAC and is compared to the analytic reconstruction method 3-D reprojection (RP) with 3-D filtered backprojection.
Affiliation:
Paterson Institute for Cancer Research. Christie Hospital, Withington, Manchester M20 4BX, UK
Citation:
One-pass list-mode EM algorithm for high-resolution 3-D PET image reconstruction into large arrays. 2002, 49(3): 693-699 IEEE Tra Nuc Sci.
Journal:
IEEE Transactions on Nuclear Science
Issue Date:
2002
URI:
http://hdl.handle.net/10541/84339
Type:
Article
Language:
en
Appears in Collections:
All Paterson Institute for Cancer Research

Full metadata record

DC FieldValue Language
dc.contributor.authorReader, Andrew Jen
dc.contributor.authorAlly, Sen
dc.contributor.authorManavaki, Roidoen
dc.contributor.authorWalledge, R Jen
dc.contributor.authorJeavons, A Pen
dc.contributor.authorJulyan, Peter Jen
dc.contributor.authorZhao, Shaen
dc.contributor.authorHastings, David Len
dc.contributor.authorZweit, Jamalen
dc.date.accessioned2009-10-16T11:21:47Z-
dc.date.available2009-10-16T11:21:47Z-
dc.date.issued2002-
dc.identifier.citationOne-pass list-mode EM algorithm for high-resolution 3-D PET image reconstruction into large arrays. 2002, 49(3): 693-699 IEEE Tra Nuc Sci.en
dc.identifier.urihttp://hdl.handle.net/10541/84339-
dc.description.abstractHigh-resolution three-dimensional (3-D) positron emission tomography (PET) scanners with high count rate performance, such as the quad-high density avalanche chamber (HIDAC), place new demands on image reconstruction algorithms due to the large quantities of high-precision list-mode data which are produced. Therefore, a reconstruction algorithm is required which can, in a practical time frame, reconstruct into very large image arrays (submillimeter voxels, which range over a large field of view) whilst preferably retaining the precision of the data. This work presents an algorithm which meets these demands: one-pass list-mode expectation maximization (OPL-EM) algorithm. The algorithm operates directly on list-mode data, passes through the data once only, accounts for finite resolution effects in the system model, and can also include regularization. The algorithm performs multiple image updates during its single pass through the list-mode data, corresponding to the number of subsets that the data have been split into. The algorithm has been assessed using list-mode data from a quad-HIDAC and is compared to the analytic reconstruction method 3-D reprojection (RP) with 3-D filtered backprojection.en
dc.language.isoenen
dc.subjectInterative Image Reconstructionen
dc.subjectList Modeen
dc.subjectPositron-Emission Tomographyen
dc.titleOne-pass list-mode EM algorithm for high-resolution 3-D PET image reconstruction into large arraysen
dc.typeArticleen
dc.contributor.departmentPaterson Institute for Cancer Research. Christie Hospital, Withington, Manchester M20 4BX, UKen
dc.identifier.journalIEEE Transactions on Nuclear Scienceen
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