Zobrazeno 1 - 10
of 123
pro vyhledávání: '"D.J. van der Laan"'
Autor:
Marnix C. Maas, Carel W.E. van Eijk, Dennis R. Schaart, Cedric Lemaitre, Freek J. Beekman, D.J. van der Laan, Peter Bruyndonckx
Publikováno v:
Medical Physics. 37:1904-1913
PURPOSE: Previously, we demonstrated the potential of positron emission tomography detectors consisting of monolithic scintillation crystals read out by arrays of solid-state light sensors. We reported detector spatial resolutions of 1.1-1.3 mm full
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76ab2086ed2dd41b8ef87867da98d604
https://doi.org/10.1118/1.3355889
https://doi.org/10.1118/1.3355889
Autor:
D.J. van der Laan, Freek J. Beekman, Marnix C. Maas, Dennis R. Schaart, C.W.E. van Eijk, Peter Bruyndonckx
Publikováno v:
Physics in Medicine and Biology, 55, 1659-75
Physics in Medicine and Biology, 55, 6, pp. 1659-75
Physics in Medicine and Biology, 55 (6), 2010
Physics in Medicine and Biology, 55, 6, pp. 1659-75
Physics in Medicine and Biology, 55 (6), 2010
Item does not contain fulltext Much research is being conducted on position-sensitive scintillation detectors for medical imaging, particularly for emission tomography. Monte Carlo simulations play an essential role in many of these research activiti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e513dfe715fe7cf344dc66678c8922c
https://doi.org/10.1088/0031-9155/55/6/009
https://doi.org/10.1088/0031-9155/55/6/009
Autor:
M. Krieguer, Dennis R. Schaart, P. Bruyndonckx, Stefaan Tavernier, Zhi Li, Wang Yonggang, C. Lemaitre, Marnix C. Maas, D.J. van der Laan
Publikováno v:
IEEE Transactions on Nuclear Science. 55:918-924
Neural Networks trained with error back propagation Levenberg-Marquardt training (LM), Neural Networks trained with an algebraic method and Support Vector Machines (SVM) were evaluated to extract the position information from measured light distribut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cff0bb28b2981ecb7a41cafd37b2e8ae
https://doi.org/10.1109/tns.2008.922811
https://doi.org/10.1109/tns.2008.922811
Autor:
Dennis R. Schaart, M. Krieguer, Marnix C. Maas, Peter Bruyndonckx, Olivier Devroede, Stefaan Tavernier, D.J. van der Laan, Cedric Lemaitre
Publikováno v:
Vrije Universiteit Brussel
CIÊNCIAVITAE
CIÊNCIAVITAE
Monolithic scintillator blocks provide an efficient way to significantly increase the sensitivity of high-resolution positron emission tomography (PET) systems. Using statistical or neural network-based positioning schemes, the measured intrinsic det
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::046a3893923feb79af05473964d28ead
https://doi.org/10.1016/j.nima.2006.10.058
https://doi.org/10.1016/j.nima.2006.10.058
Autor:
Peter Bruyndonckx, Dennis R. Schaart, Marnix C. Maas, M. Krieguer, Olivier Devroede, Cedric Lemaitre, D.J. van der Laan, Stefaan Tavernier
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 571:304-307
The absence of very small crystal pixels in monolithic scintillation detectors has a number of potential advantages such as higher sensitivity, better energy resolution and continuous coordinates. In such detectors, the photon incidence position on t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03fb8e2bbf942d927058135160ba44d2
https://doi.org/10.1016/j.nima.2006.10.088
https://doi.org/10.1016/j.nima.2006.10.088
Autor:
Dennis R. Schaart, Olivier Devroede, Marnix C. Maas, Yibao Wu, M. Krieguer, C. Lemaitre, Stefaan Tavernier, P. Bruyndonckx, S. Leonard, D.J. van der Laan
Publikováno v:
IEEE Transactions on Nuclear Science. 53:2543-2548
Previous experimental results have demonstrated that a PET detector module based on a 20times10times10 mm LSO block read out by a Hamamatsu S8550 APD array is able to determine the impinging position of perpendicularly incident 511-keV photons with a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb23a85f465fdee8d11d81e0cf9c6c06
https://doi.org/10.1109/tns.2006.875998
https://doi.org/10.1109/tns.2006.875998
Publikováno v:
Physics in Medicine and Biology, 57, 6479-6496
Physics in Medicine and Biology, 57, pp. 6479-6496
Physics in Medicine and Biology, 57, pp. 6479-6496
Item does not contain fulltext Cramér-Rao theory can be used to derive the lower bound on the spatial resolution achievable with position-sensitive scintillation detectors as a function of the detector geometry and the pertinent physical properties
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4d1066ae495e1cfbbdba544cb7647f2
http://hdl.handle.net/2066/108517
http://hdl.handle.net/2066/108517
Autor:
Cedric Lemaitre, Marnix C. Maas, Freek J. Beekman, D.J. van der Laan, Carel W.E. van Eijk, Dennis R. Schaart, Peter Bruyndonckx
Publikováno v:
Physics in Medicine and Biology, 54 (7), 2009
We developed positron emission tomography (PET) detectors based on monolithic scintillation crystals and position-sensitive light sensors. Intrinsic depth-of-interaction (DOI) correction is achieved by deriving the entry points of annihilation photon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0de70a3309650b3e710829feaf558ce
https://pubmed.ncbi.nlm.nih.gov/19265203
https://pubmed.ncbi.nlm.nih.gov/19265203
Autor:
Marnix C. Maas, D.J. van der Laan, M. Krieguer, Cedric Lemaitre, Dennis R. Schaart, Peter Bruyndonckx, Olivier Devroede, S. Tavernier
Publikováno v:
CIÊNCIAVITAE
Vrije Universiteit Brussel
Vrije Universiteit Brussel
Several positioning algorithms are tested to extract position information from the measured scintillation light distribution generated in monolithic LSO blocks of various shapes and read out by a Hamamatsu S8550 APD array. The intrinsic detector reso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51432ecec59ba0ee251a7331d77cb932
https://biblio.vub.ac.be/vubir/comparison-of-nonlinear-position-estimators-for-continuous-scintillator-detectors-in-pet(4a466e4e-b8a4-4a4f-bdb6-76ef81d457ac).html
https://biblio.vub.ac.be/vubir/comparison-of-nonlinear-position-estimators-for-continuous-scintillator-detectors-in-pet(4a466e4e-b8a4-4a4f-bdb6-76ef81d457ac).html
Autor:
Dennis R. Schaart, D.J. van der Laan, Cedric Lemaitre, Peter Bruyndonckx, H.w.a.m. De Jong, Marnix C. Maas, C.W.E. van Eijk
The performance of a small-animal positron emission tomography (PET) scanner based on monolithic scintillation detectors read-out by avalanche photo-diode arrays has been investigated by simulation. By minimizing dead space, both within and between t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c14abf0f43a5dee9cc557203f0412ea
https://biblio.vub.ac.be/vubir/simulated-performance-of-a-smallanimal-pet-scanner-based-on-monolithic-scintillation-detectors(3599103e-35a9-4c90-9480-e1d26e248f3d).html
https://biblio.vub.ac.be/vubir/simulated-performance-of-a-smallanimal-pet-scanner-based-on-monolithic-scintillation-detectors(3599103e-35a9-4c90-9480-e1d26e248f3d).html