Title :
Three-dimensional Bayesian reconstruction applied to cardiac SPECT
Author :
Kudo, Hiroyuki ; Watanabe, Shuichi ; Saito, Tsuneo
Author_Institution :
Inst. of Inf. Sci. & Electron., Tsukuba Univ., Japan
Abstract :
The conventional maximum a posteriori probability estimators for image reconstruction in emission tomography suffer from oversmoothing of boundaries. To overcome this drawback, the authors propose a fully 3-D Bayesian reconstruction algorithm based on the 3-D compound Gauss-Markov random field model. Furthermore, they apply this algorithm to cardiac SPECT data to demonstrate its validity
Keywords :
Bayes methods; algorithm theory; cardiology; image reconstruction; medical image processing; single photon emission computed tomography; 3-D compound Gauss-Markov random field model; boundaries oversmoothing; cardiac SPECT data; emission tomography; fully 3-D Bayesian reconstruction algorithm; maximum a posteriori probability estimators; medical diagnostic imaging; nuclear medicine; three-dimensional Bayesian reconstruction; Bayesian methods; Gaussian processes; Image reconstruction; Iterative algorithms; Iterative methods; Markov random fields; Maximum likelihood estimation; Reconstruction algorithms; Relaxation methods; Tomography;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference Record, 1995., 1995 IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-3180-X
DOI :
10.1109/NSSMIC.1995.510486
