The roles of observer models in evaluating Compton camera performance

The authors studied the feasibility of using observer models for describing Compton camera performance in terms of lesion detection. Ideal observer and human observer models are decision makers to perform the detection tasks. Task performance evaluation provides a basis for comparison between Compton cameras and mechanically collimated systems. Observer performance studies for Compton cameras are potentially very useful, but they are computationally expensive. Also, for the results to be meaningful, one requires accurate system modeling and estimation strategies. The authors discuss these challenges