Sökning: id:"swepub:oai:lup.lub.lu.se:e1848222-0980-4321-8f35-5d113af4da96" >
Statistical iterati...
-
Hahn, Dieter
(författare)
Statistical iterative reconstruction algorithm for X-ray phase-contrast CT.
- Artikel/kapitelEngelska2015
Förlag, utgivningsår, omfång ...
-
2015-06-12
-
Springer Science and Business Media LLC,2015
-
electronicrdacarrier
Nummerbeteckningar
-
LIBRIS-ID:oai:lup.lub.lu.se:e1848222-0980-4321-8f35-5d113af4da96
-
https://lup.lub.lu.se/record/7486757URI
-
https://doi.org/10.1038/srep10452DOI
Kompletterande språkuppgifter
-
Språk:engelska
-
Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
-
Ämneskategori:art swepub-publicationtype
-
Ämneskategori:ref swepub-contenttype
Anmärkningar
-
Grating-based phase-contrast computed tomography (PCCT) is a promising imaging tool on the horizon for pre-clinical and clinical applications. Until now PCCT has been plagued by strong artifacts when dense materials like bones are present. In this paper, we present a new statistical iterative reconstruction algorithm which overcomes this limitation. It makes use of the fact that an X-ray interferometer provides a conventional absorption as well as a dark-field signal in addition to the phase-contrast signal. The method is based on a statistical iterative reconstruction algorithm utilizing maximum-a-posteriori principles and integrating the statistical properties of the raw data as well as information of dense objects gained from the absorption signal. Reconstruction of a pre-clinical mouse scan illustrates that artifacts caused by bones are significantly reduced and image quality is improved when employing our approach. Especially small structures, which are usually lost because of streaks, are recovered in our results. In comparison with the current state-of-the-art algorithms our approach provides significantly improved image quality with respect to quantitative and qualitative results. In summary, we expect that our new statistical iterative reconstruction method to increase the general usability of PCCT imaging for medical diagnosis apart from applications focused solely on soft tissue visualization.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
-
Thibault, Pierre
(författare)
-
Fehringer, Andreas
(författare)
-
Bech, MartinLund University,Lunds universitet,Medicinsk strålningsfysik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Medical Radiation Physics, Lund,Section V,Department of Clinical Sciences, Lund,Faculty of Medicine(Swepub:lu)med-mbh
(författare)
-
Koehler, Thomas
(författare)
-
Pfeiffer, Franz
(författare)
-
Noël, Peter B
(författare)
-
Medicinsk strålningsfysik, LundSektion V
(creator_code:org_t)
Sammanhörande titlar
-
Ingår i:Scientific Reports: Springer Science and Business Media LLC52045-2322
Internetlänk
Hitta via bibliotek
Till lärosätets databas