Maximum likelihood reconstruction in emission tomography with time-of-flight information: a limited study. Technical report

Technical Report · Sat Oct 01 04:00:00 EDT 1983

OSTI ID:5180376

Kaufman, L; Morgenthaler, S; Vardi, Y

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 flight 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.

• Research Organization: Massachusetts Inst. of Tech., Cambridge (USA). Statistics Center
• OSTI ID: 5180376
• Report Number(s): AD-A-135061/0
• Country of Publication: United States
• Language: English

Related Subjects

440100* -- Radiation Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALGORITHMS
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
COMPUTERIZED SIMULATION
COMPUTERIZED TOMOGRAPHY
DIAGNOSTIC TECHNIQUES
ELEMENTARY PARTICLES
EMISSION
EMISSION COMPUTED TOMOGRAPHY
FERMIONS
LEPTONS
MATHEMATICAL LOGIC
MAXIMUM-LIKELIHOOD FIT
NUMERICAL SOLUTION
POSITRON COMPUTED TOMOGRAPHY
POSITRONS
SIMULATION
TIME-OF-FLIGHT METHOD
TOMOGRAPHY