Title :
Performance evaluation of relaxed block-iterative algorithms for 3-D PET reconstruction
Author :
Fukano, A. ; Nakayama, T. ; Kudo, H.
Author_Institution :
Graduate Sch. of Syst. & Inf. Eng., Tsukuba Univ.
Abstract :
We evaluate performances of the four typical block-iterative algorithms (OSEM, RBI, RAMLA, DRAMA) for 3-D PET reconstruction by detailed simulation studies. Furthermore, we extend RAMLA and DRAMA to list-mode data
Keywords :
image reconstruction; iterative methods; maximum likelihood estimation; medical image processing; positron emission tomography; 3-D PET reconstruction; DRAMA; OSEM; RBI; dynamic RAMLA algorithm; list-mode data; ordered subsets expectation maximization algorithm; performance evaluation; relaxed block-iterative algorithms; rescaled block-iterative algorithm; row-action maximum likelihood algorithm; Attenuation; Data engineering; Degradation; Geometry; Image reconstruction; Imaging phantoms; Limit-cycles; Performance evaluation; Positron emission tomography; Systems engineering and theory;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2004 IEEE
Conference_Location :
Rome
Print_ISBN :
0-7803-8700-7
Electronic_ISBN :
1082-3654
DOI :
10.1109/NSSMIC.2004.1466277
