Channelized hotelling and human observer study of optimal smoothing in SPECT MAP reconstruction

  title={Channelized hotelling and human observer study of optimal smoothing in SPECT MAP reconstruction},
  author={Jorge Oldan and S. Kulkarni and Yuxiang Xing and Parmeshwar Khurd and Gene Gindi},
  journal={IEEE Transactions on Nuclear Science},
We compared the performance of a channelized Hotelling observer (CHO) to that of human observers to determine an optimal smoothing parameter /spl beta/ for an SKE/BKE detection task in a SPECT MAP (maximum a posteriori) reconstruction. The study is motivated in part by the recent development of theoretical methods that can rapidly predict CHO signal-to-noise ratios (SNRs) for MAP reconstructions. We found that a CHO not adjusted for internal noise effects was less predictive of the optimal… CONTINUE READING


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