Comparing filtered backprojection and ordered-subsets expectation maximization for small-lesion detection and localization in 67Ga SPECT.
Wells RG, King MA, Simkin PH, Judy PF, Brill AB, Gifford HC, Licho R, Pretorius PH, Schneider PB, Seldin DW. Comparing filtered backprojection and ordered-subsets expectation maximization for small-lesion detection and localization in 67Ga SPECT. J Nucl Med. 2000 Aug; 41(8):1391-9.