Publications
Internet2-based 3D PET image reconstruction using a PC cluster.
Shattuck DW; Rapela J; Asma E; Chatzioannou A; Qi J; Leahy RM; Physics in medicine and biology. 2002-Aug-7; 47(2785-95):15
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.
PMID:
12200939 doi:
10.1385/NI:1:4:397
BMAP Author
David Shattuck Ph.D.
