Title :
A scheme for accidental coincidence correction in time-of-flight positron tomography: theory and implementation
Author :
Haynor, DR ; Harrison, RL ; Lewellen, Tk
Author_Institution :
Dept. of Radiol., Washington Univ., Seattle, WA, USA
Abstract :
A computationally inexpensive method is described for correcting time-of-flight positron-emission-tomography (PET) images for accidental coincidences. Initial runs of the algorithm show that it rapidly (2-6 iterations) yields accurate estimates of single rates from simulated data corrupted by Poisson noise. Two illustrative experiments with the method are described.<>
Keywords :
computerised tomography; radioisotope scanning and imaging; PET; Poisson noise; accidental coincidence correction; time-of-flight positron tomography; Electromagnetic scattering; Event detection; Gamma ray detection; Gamma ray detectors; Hardware; Particle scattering; Positron emission tomography; Programming; Radiology; Timing;
Journal_Title :
Nuclear Science, IEEE Transactions on
