Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Björn Cederström"'
We present a novel method for characterizing mammographic findings using spectral imaging without the use of contrast agent. Within a statistical framework, suspicious findings are analyzed to determine if they are likely to be benign cystic lesions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6407ef79afd7518a419791464b4550f
http://arxiv.org/abs/2101.09659
http://arxiv.org/abs/2101.09659
Chromatic properties of the multi-prism and prism-array x-ray lenses (MPL and PAL) can potentially be utilized for efficient energy filtering and dose reduction in mammography. The line-shaped foci of the lenses are optimal for coupling to photon-cou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::025996781639e6b4caca5fe9ad34b70a
X-ray attenuation of adipose breast tissue: in-vitro and in-vivo measurements using spectral imaging
Autor:
Mats Lundqvist, Fleur Kilburn-Toppin, Erik Fredenberg, Paula Willsher, Hanno Homan, Kenneth C. Young, Matthew G. Wallis, Björn Cederström, Elin Moa, David R. Dance, Klaus Erhard, H. A. B. Johansson, Karl Berggren
The development of new x-ray imaging techniques often requires prior knowledge of tissue attenuation, but the sources of such information are sparse. We have measured the attenuation of adipose breast tissue using spectral imaging, in vitro and in vi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2c2250231955cc8cde796e7b867e98b
Autor:
Erik Fredenberg, Mats Danielsson, Mats Lundqvist, Carolina Ribbing, Magnus Åslund, Robert M. Nishikawa, Björn Cederström, Felix Diekmann
Dual-energy subtraction imaging (DES) is a method to improve the detectability of contrast agents over a lumpy background. Two images, acquired at x-ray energies above and below an absorption edge of the agent material, are logarithmically subtracted
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::055fd5bb349b6cdefd3b133af4a21306
Conventional energy filters for x-ray imaging are based on absorbing materials which attenuate low energy photons, sometimes combined with an absorption edge, thus also discriminating towards 'photons of higher energies. These filters are fairly inef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::362d3405a7cfbc0939ac8a1c05c36cde
Publikováno v:
Medical Physics. 45:4392-4401
Digital breast tomosynthesis (DBT) is becoming an important part of breast cancer screening and diagnosis. Compared to two-dimensional mammography, tomosynthesis introduces limited three-dimensional (3D) resolution, but maintains high in-plane resolu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e68a55823f45d3167f9290560fb44939
https://doi.org/10.1002/mp.13116
https://doi.org/10.1002/mp.13116
Publikováno v:
Medical Physics. 45:635-638
Purpose Digital breast tomosynthesis (DBT) is an emerging tool for breast-cancer screening and diagnostics. The purpose of this study is to present a second-generation photon-counting slit-scanning DBT system and compare it to the first-generation sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92618efafb8404801ba1f74b8188a598
https://doi.org/10.1002/mp.12735
https://doi.org/10.1002/mp.12735
Publikováno v:
Medical Imaging 2019: Physics of Medical Imaging.
The objective of our study was to evaluate the feasibility of using silver sulfide nanoparticles (Ag2S-NP) as a contrast agent for photon-counting mammography. The efficacies of Ag2S-NP and iodine contrast were evaluated using a contrastembedded grad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3bb56ccd5ea44754f9e589cabb94c819
https://doi.org/10.1117/12.2511757
https://doi.org/10.1117/12.2511757
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:
Artur Sossin, Mats Lundqvist, Frank Bergner, Harald Sepp Heese, Björn Cederström, Klaus Erhard
Publikováno v:
Medical Imaging 2018: Physics of Medical Imaging.
Digital breast tomosynthesis is a rising modality in breast cancer screening and diagnosis. As such, there is also increasing interest in employing breast tomosynthesis in diagnostic tasks like tomosynthesis-guided stereotactic breast biopsy, which i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a030d534973509707c9908e6ab5741d9
https://doi.org/10.1117/12.2292334
https://doi.org/10.1117/12.2292334