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pro vyhledávání: '"M.E. Daube-Witherspoon"'
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Akademický článek
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Autor:
M.E. Daube-Witherspoon
This chapter discusses reconstruction methods for time-of-flight (TOF) positron emission tomography (PET) in which the arrival times of each annihilation photon from the positron decay are measured and provide a means of localizing the source of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f3f228e045e0da6c7acbd82d42239ce
https://doi.org/10.1016/b978-0-444-53632-7.00118-0
https://doi.org/10.1016/b978-0-444-53632-7.00118-0
Autor:
Jurgen Seidel, M.E. Daube-Witherspoon, Rutao Yao, Calvin A. Johnson, Richard E. Carson, Michael V. Green
Publikováno v:
IEEE Transactions on Medical Imaging. 19:798-804
Rat brain images acquired with a small animal positron emission tomography (PET) camera and reconstructed with the three-dimensional (3-D) ordered-subsets expectation-maximization (OSEM) algorithm with resolution recovery have better quality when the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17d723407ad80d3ceece7fa55a569697
https://doi.org/10.1109/42.876305
https://doi.org/10.1109/42.876305
Akademický článek
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Publikováno v:
IEEE Transactions on Medical Imaging. 17:9-23
The authors analyzed the noise characteristics of two-dimensional (2-D) and three-dimensional (3-D) images obtained from the GE Advance positron emission tomography (PET) scanner. Three phantoms were used: a uniform 20-cm phantom, a 3-D Hoffman brain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fb7192d87b7e745eec135ad33793b34
https://doi.org/10.1109/42.668691
https://doi.org/10.1109/42.668691
Autor:
W.R. Gandler, Jurgen Seidel, Ariela Sofer, Michael V. Green, Richard E. Carson, M.E. Daube-Witherspoon, Calvin A. Johnson
Publikováno v:
IEEE Transactions on Nuclear Science. 44:1303-1308
The use of paired, opposing position-sensitive phototube scintillation cameras (SCs) operating in coincidence for small animal imaging with positron emitters is currently under study. Because of the low sensitivity of the system even in 3D mode and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::295f1380496542b815e588de9db2262b
https://doi.org/10.1109/23.597005
https://doi.org/10.1109/23.597005
Publikováno v:
IEEE Transactions on Medical Imaging. 13:526-537
The imaging characteristics of maximum likelihood (ML) reconstruction using the EM algorithm for emission tomography have been extensively evaluated. There has been less study of the precision and accuracy of ML estimates of regional radioactivity co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c63004fafdb64bee474c4d56a2d5daa9
https://doi.org/10.1109/42.310884
https://doi.org/10.1109/42.310884
Autor:
M.E. Daube-Witherspoon, Stephen L. Bacharach, Peter Herscovitch, Richard E. Carson, Nanette Freedman, Yuchen Yan
Publikováno v:
IEEE Transactions on Medical Imaging. 12:240-250
An approximation formula for the variance of positron emission tomography (PET) region-of-interest (ROI) values has been developed, implemented, and evaluated. This formula does not require access to the original projection data and is therefore conv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e44311056c44899657834b2dd5ec8eca
https://doi.org/10.1109/42.232252
https://doi.org/10.1109/42.232252
Publikováno v:
Journal of Cerebral Blood Flow & Metabolism. 11:A38-A44
Volume imaging positron emission tomographic (PET) scanners with no septa and a large axial acceptance angle offer several advantages over multiring PET scanners. A volume imaging scanner combines high sensitivity with fine axial sampling and spatial
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c37574d429d95a788bba352455595959
https://doi.org/10.1038/jcbfm.1991.35
https://doi.org/10.1038/jcbfm.1991.35