Title :
Assessment of PSF modeling in PET AWOSEM reconstruction
Author :
De Bernardi, E. ; Zito, F. ; Baselli, G.
Author_Institution :
Polytech. Univ. of Milan, Milan
Abstract :
An evaluation of AWOSEM with a point spread function model included in the system matrix for spatial resolution improvement in positron emission tomography was presented. The algorithm performances were evaluated on an experimentally acquired anthropomorphic phantom and on two lung cancer patient data. The study confirmed that the proposed strategy is able to improve quantitative accuracy, but that the amount of the achievable improvement and the corresponding parameter settings are object-dependent.
Keywords :
cancer; image reconstruction; image resolution; lung; medical image processing; optical transfer function; phantoms; positron emission tomography; PET AWOSEM reconstruction; PSF modeling; anthropomorphic phantom; lung cancer patient; point spread function model; positron emission tomography; spatial resolution improvement; Anthropomorphism; Cancer; Image reconstruction; Imaging phantoms; Lungs; Maximum likelihood estimation; Performance analysis; Performance evaluation; Positron emission tomography; Spatial resolution; Abdomen; Algorithms; Humans; Image Processing, Computer-Assisted; Lung Neoplasms; Phantoms, Imaging; Positron-Emission Tomography; Thorax;
Conference_Titel :
Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE
Conference_Location :
Lyon
Print_ISBN :
978-1-4244-0787-3
DOI :
10.1109/IEMBS.2007.4353860
