Maximum Likelihood Reconstruction in Emission Tomography with Time-of-Flight Information: A Limited Study.
MASSACHUSETTS INST OF TECH CAMBRIDGE STATISTICS CENTER
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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.
- Theoretical Mathematics
- Nuclear Physics and Elementary Particle Physics