Evaluation of Multiclass Model Observers in PET LROC Studies

  title={Evaluation of Multiclass Model Observers in PET LROC Studies},
  author={H. C. Gifford and P. E. Kinahan and Carole Lartizien and M. A. King},
  journal={IEEE Transactions on Nuclear Science},
A localization ROC (LROC) study was conducted to evaluate nonprewhitening matched-filter (NPW) and channelized NPW (CNPW) versions of a multiclass model observer as predictors of human tumor-detection performance with PET images. Target localization is explicitly performed by these model observers. Tumors were placed in the liver, lungs, and background soft tissue of a mathematical phantom, and the data simulation modeled a full-3D acquisition mode. Reconstructions were performed with the FORE… CONTINUE READING