Title :
Maximum-Likelihood Reconstruction for Single-Photon Emission Computed-Tomography
Author :
Miller, Michael I. ; Snyder, Donald L. ; Miller, Tom R.
Author_Institution :
Department of Electrical Engineering, Institute for Biomedical Computing
Abstract :
A mathematical model is formulated for a gamma camera used to observe single-photon emissions from multiple view angles. The model accounts for the statistics of radioactive decays, nonuniform attenuation, and a depth-dependent point-spread function. The maximum-likelihood method of statistics is used with the model to derive an algorithm for estimating the distribution of radioactivity.
Keywords :
Attenuation; Biomedical computing; Cameras; Detectors; Gamma ray detection; Iterative algorithms; Maximum likelihood detection; Maximum likelihood estimation; Statistical distributions; Tomography;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1985.4336939
