Accession Number : ADA135061
Title : Maximum Likelihood Reconstruction in Emission Tomography with Time-of-Flight Information: A Limited Study.
Descriptive Note : Technical rept.,
Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE STATISTICS CENTER
Personal Author(s) : Kaufman,L ; Morgenthaler,S ; Vardi,Y
PDF Url : ADA135061
Report Date : Oct 1983
Pagination or Media Count : 20
Abstract : The maximum likelihood reconstruction for positron emission tomography (PET) and its use in connection with time-of-flight (TOF) tomography are reviewed and the issue of trade-off between information and data (that is, time of fight information vs. additional coincidence count data) is explained. The maximum likelihood technique is then used to qualitatively assess this trade-off by means of visually comparing reconstructions. Specifically, the authors use computer simulation to generate data of PET experiments with a fixed emission density Lambda and with varying amounts of TOF information and total coincidence count data. The maximum likelihood technique is then used to reconstruct Lambda on the bases of these data sets and the different reconstructions are displayed and compared.
Descriptors : *Maximum likelihood estimation, *Positrons, *Emission, *Tomography, *Computerized simulation, Algorithms, Pictures, Scanning, Image restoration
Subject Categories : Theoretical Mathematics
Nuclear Physics & Elementary Particle Physics
Distribution Statement : APPROVED FOR PUBLIC RELEASE