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PubMed · 12200939

Internet2-based 3D PET image reconstruction using a PC cluster.

D W Shattuck·J Rapela·E Asma·A Chatzioannou·J Qi·R M Leahy
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Abstract

We describe an approach to fast iterative reconstruction from fully three-dimensional (3D) PET data using a network of PentiumIII PCs configured as a Beowulf cluster. To facilitate the use of this system, we have developed a browser-based interface using Java. The system compresses PET data on the user's machine, sends these data over a network, and instructs the PC cluster to reconstruct the image. The cluster implements a parallelized version of our preconditioned conjugate gradient method for fully 3D MAP image reconstruction. We report on the speed-up factors using the Beowulf approach and the impacts of communication latencies in the local cluster network and the network connection between the user's machine and our PC cluster.

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AlgorithmsAnimalsBrainComputer SimulationHumansHypermediaImage EnhancementImaging, Three-DimensionalInformation Storage and RetrievalInternetLocal Area NetworksMicrocomputersQuality ControlTomography, Emission-ComputedEvaluation StudyJournal ArticleResearch Support, U.S. Gov't, P.H.S.Validation Study

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D W Shattuck, J Rapela, E Asma, A Chatzioannou, J Qi, R M Leahy. 2002-08-07. Internet2-based 3D PET image reconstruction using a PC cluster.. https://doi.org/10.1088/0031-9155%2F47%2F15%2F317

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