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IEEE Symposium Conference Record Nuclear Science 2004.
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 performancedoi:10.1109/nssmic.2004.1466305 fatcat:msww3ufexjalhpfcgpfefpx2yi