Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Martin Sjölin"'
Publikováno v:
Physics in Medicine & Biology
The introduction of photon-counting detectors is expected to be the next major breakthrough in clinical x-ray computed tomography (CT). During the last decade, there has been considerable research activity in the field of photon-counting CT, in terms
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f3cb504e6eed9ffd17e4a50391ddd59a
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-288158
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-288158
Publikováno v:
Journal of Medical Imaging
Purpose: Photon-counting silicon strip detectors are attracting interest for use in next-generation CT scanners. For CT detectors in a clinical environment, it is desirable to have a low power consumption. However, decreasing the power consumption le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d57e26238b2dc93c0e9fd6b19922feba
https://pubmed.ncbi.nlm.nih.gov/33033734
https://pubmed.ncbi.nlm.nih.gov/33033734
Autor:
Andreas Ehliar, Mats Danielsson, J. Jacob Wikner, Christel Sundberg, Martin Sjölin, Mats Persson
Publikováno v:
Medical Imaging 2019: Physics of Medical Imaging.
Photon-counting silicon strip detectors are attracting interest for use in next generation CT scanners. For silicon detectors, a low noise floor is necessary to obtain a good dose efficiency. A low noise floor can be achieved by having a filter with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b074a787e521b2b0022a097c160d10c0
https://doi.org/10.1117/12.2512826
https://doi.org/10.1117/12.2512826
Autor:
Mats Danielsson, Zlatan Alagic, Mats Persson, Björn Cederström, Martin Sjölin, Joakim da Silva, Fredrik Grönberg, Robert Bujila
Publikováno v:
J Med Imaging (Bellingham)
Photon-counting detectors are expected to bring a range of improvements to patient imaging with x-ray computed tomography (CT). One is higher spatial resolution. We demonstrate the resolution obtained using a commercial CT scanner where the original
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4df136455852cd78d6f2f6b7cd52c369
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-262713
http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-262713
Autor:
Mats Danielsson, Martin Sjölin
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 840:1-4
Accurate and reliable energy calibration of spectral x-ray detectors used in medical imaging is essential for avoiding ring artifacts in the reconstructed images (computed tomography) and for performing accurate material basis decomposition. A simple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed02f3b5bd29a36ef9401ecee616de96
https://doi.org/10.1016/j.nima.2016.09.045
https://doi.org/10.1016/j.nima.2016.09.045
Autor:
Martin Sjölin, Mats Danielsson
Publikováno v:
Medical Physics. 43:6165-6174
Purpose Photon-counting edge-on detectors are currently being considered for use in clinical computed tomography (CT) systems. A method for geometric calibration of edge-on detectors mounted on a CT-gantry has been developed and evaluated. The method
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cdb659046099b93c5cd50e117b25b47
https://doi.org/10.1118/1.4964792
https://doi.org/10.1118/1.4964792
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 827:102-106
A silicon-strip detector is developed for spectral computed tomography. The detector operates in photon counting mode and allows pulse-height discrimination with 8 adjustable energy bins. In this w ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::986e8ea6294e7787eb015183d9ef8830
https://doi.org/10.1016/j.nima.2016.04.087
https://doi.org/10.1016/j.nima.2016.04.087
Autor:
Martin Sjölin, Mats Danielsson
Publikováno v:
Medical Physics. 43:2877-2883
Purpose: Today’s computed tomography(CT) scanners operate at an increasingly high rotation speed in order to reduce motion artifacts and to fulfill the requirements of dynamic acquisition, e.g., perfusion and cardiac imaging, with lower angular sam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03bfdd7aab3ad53cf3012e704144e2f0
https://doi.org/10.1118/1.4948505
https://doi.org/10.1118/1.4948505
Autor:
Martin Sjölin, Scott S. Hsieh
Publikováno v:
Medical physics.
PURPOSE Charge sharing is a significant problem for CdTe-based photon counting detectors (PCDs) and can cause high-energy photons to be misclassified as one or more low-energy events. Charge sharing is especially problematic in PCDs for CT because th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e51e17e74b0051d9dbda416f3a1a06b0
https://pubmed.ncbi.nlm.nih.gov/30027678
https://pubmed.ncbi.nlm.nih.gov/30027678
Publikováno v:
Medical Imaging 2018: Physics of Medical Imaging.
Photon counting detectors are expected to be the next big step in the development of medical computed tomography. Accurate modeling of the behavior of photon counting detectors in the high count rate regime is therefore important for detector perform
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c2f149dc439a3e61c7829b718a517da
https://doi.org/10.1117/12.2293095
https://doi.org/10.1117/12.2293095