DocumentCode
2612833
Title
A method for OSEM PET reconstruction on parallel architectures using STIR
Author
Beisel, Tobias ; Lietsch, Stefan ; Thielemans, Kris
Author_Institution
Paderborn Center for Parallel Computing, University of Paderborn, Germany
fYear
2008
fDate
19-25 Oct. 2008
Firstpage
4161
Lastpage
4168
Abstract
To accelerate image reconstruction of positron emission tomography (PET) data, we introduced an approach for parallel architectures by applying the message passing paradigm to an existing implementation of the ordered-subsets expectation-maximization (OSEM) algorithm for two- or three-dimensional (2D/3D) PET. To reduce the amount of time needed to complete a reconstruction, a cluster was used as well as different multi-core systems. A main focus was on the multi-core processors, as these systems are increasingly common and easy to use in medical environments.
Keywords
Clustering algorithms; Computer architecture; Image reconstruction; Message passing; Multicore processing; Open source software; Parallel architectures; Positron emission tomography; Runtime; System testing;
fLanguage
English
Publisher
ieee
Conference_Titel
Nuclear Science Symposium Conference Record, 2008. NSS '08. IEEE
Conference_Location
Dresden, Germany
ISSN
1095-7863
Print_ISBN
978-1-4244-2714-7
Electronic_ISBN
1095-7863
Type
conf
DOI
10.1109/NSSMIC.2008.4774198
Filename
4774198
Link To Document