Results of a Comparative Study of a Reconstruction Procedure for Producing Improved Estimates of Radioactivity Distributions in Time-of-Flight Emission Tomography

Several reconstruction algorithms for estimating distributions of radioactivity in an emission-tomography system having time-of-flight measurements have previously been identified. We present here a comparative study of various images reconstructed from data acquired with an emission-tomography system having time-of-flight data. Preliminary results indicate that a new recursive algorithm provides substantial improvements in image quality.