Zobrazeno 1 - 10
of 129
pro vyhledávání: '"S. Mustafovic"'
Autor:
Nikolaos Dikaios, Pablo Aguiar, S. Mustafovic, Charalampos Tsoumpas, Tobias Beisel, M. Jacobson, Kris Thielemans
Publikováno v:
Physics in Medicine and Biology. 57:867-883
We present a new version of STIR (Software for Tomographic Image Reconstruction), an open source object-oriented library implemented in C++ for 3D positron emission tomography reconstruction. This library has been designed such that it can be used fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8488c1ec1182a7633f6a2854a3b1ad2
https://doi.org/10.1088/0031-9155/57/4/867
https://doi.org/10.1088/0031-9155/57/4/867
Publikováno v:
IEEE Transactions on Nuclear Science
IEEE Transactions on Nuclear Science, Institute of Electrical and Electronics Engineers, 2008, 55, pp.543-551. ⟨10.1109/TNS.2007.914207⟩
IEEE Transactions on Nuclear Science, 2008, 55, pp.543-551. ⟨10.1109/TNS.2007.914207⟩
IEEE Transactions on Nuclear Science, Institute of Electrical and Electronics Engineers, 2008, 55, pp.543-551. ⟨10.1109/TNS.2007.914207⟩
IEEE Transactions on Nuclear Science, 2008, 55, pp.543-551. ⟨10.1109/TNS.2007.914207⟩
N°1; Many PET scanners nowadays have the possibility to record event-by-event information, known as list mode data. This has the advantage of keeping the data in the highest possible resolution (both temporal and spatial). In most cases, list mode d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad3e1d09af8bd549e1b23919101613a2
http://hal.in2p3.fr/in2p3-00289078
http://hal.in2p3.fr/in2p3-00289078
Publikováno v:
2006 IEEE Nuclear Science Symposium Conference Record.
We present an update to STIR, an Open Source object-oriented library in C++ for 3D PET reconstruction. This library has been designed so that it can be used for many algorithms and scanner geometries, while being portable to various computing platfor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d56ebcf1b25d83f23ba2b560b0eb8eb
https://doi.org/10.1109/nssmic.2006.354345
https://doi.org/10.1109/nssmic.2006.354345
Publikováno v:
Scopus-Elsevier
Many PET scanners nowadays have the possibility to record event-by-event information, known as listmode data. This has the advantage to keep the data in the highest possible resolution (both temporal and spatial). In most cases, listmode data are the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0fea30961878496676b1f65237dfbed1
https://doi.org/10.1109/nssmic.2001.1008635
https://doi.org/10.1109/nssmic.2001.1008635
Autor:
S. Mustafovic, K. Thielemans
Publikováno v:
Scopus-Elsevier
It is a well-known fact that the maximum likelihood expectation maximization (MLEM) algorithm applied to either the original image or the image rescaled with the sensitivity, produces the same result. However, if an a posteriori function is maximized
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::197264280c692c9f2d67866fbd0b7aa9
https://doi.org/10.1109/nssmic.2001.1008688
https://doi.org/10.1109/nssmic.2001.1008688
Publikováno v:
Scopus-Elsevier
We discuss a motion correction scheme for rigid body motion in PET if the movement is known. Several groups have previously proposed a 2 stage process for motion correction: acquiring the data in list-mode and realigning the events according to the k
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a58d94e3f10fbebce3cfa55658b4461
https://doi.org/10.1109/nssmic.2003.1352379
https://doi.org/10.1109/nssmic.2003.1352379
Autor:
Kris Thielemans, S. Mustafovic
Publikováno v:
IEEE transactions on medical imaging. 23(4)
In this paper, we study the resolution properties of those algorithms where a filtering step is applied after every iteration. As concrete examples we take filtered preconditioned gradient descent algorithms for the Poisson log likelihood for PET emi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9a705eb7840ad693f6fbd2af2a64c50
https://pubmed.ncbi.nlm.nih.gov/15084069
https://pubmed.ncbi.nlm.nih.gov/15084069
Autor:
S. Mustafovic, K. Thielemans
Publikováno v:
Scopus-Elsevier
Images reconstructed with iterative algorithms with conventional inter-iteration filtering as a method of regularisation have spatially varying resolution, which is also object dependent. Three different methods were previously proposed which overcom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54b4bd9327ea415a53040ecb4adf8b73
https://doi.org/10.1109/nssmic.2002.1239649
https://doi.org/10.1109/nssmic.2002.1239649
Publikováno v:
Scopus-Elsevier
It is well known that the convergence properties of the maximum likelihood expectation maximisation (MLEM) algorithm depend on the activity distribution in the field of view. We study resolution properties for MLEM/ordered subsets EM (OSEM) with diff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e98308c1ed61a3e65bf4780b0cb9e83
http://www.scopus.com/inward/record.url?eid=2-s2.0-0035554880&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-0035554880&partnerID=MN8TOARS
Publikováno v:
Scopus-Elsevier
In this work the level of positive bias in images generated by various iterative reconstructions of low activity PET data was investigated. A 3D acquisition of a low activity cylinder was performed upon an EXACT3D PET scanner followed by a multi-tria
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d081e924873cda775b84ab1d38a5e340
http://www.scopus.com/inward/record.url?eid=2-s2.0-0142210120&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-0142210120&partnerID=MN8TOARS