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LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00004422naa a2200625 4500
001oai:DiVA.org:kth-11637
003SwePub
008091127s2010 | |||||||||||000 ||eng|
024a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-116372 URI
024a https://doi.org/10.1118/1.33716892 DOI
040 a (SwePub)kth
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
100a Fredenberg, Erik,c PhD,d 1979-u KTH,Medicinsk bildfysik,Medical Imaging4 aut0 (Swepub:kth)u17g0bk4
2451 0a Contrast-enhanced spectral mammography with a photon-counting detector
264 c 2010-04-12
264 1b Wiley,c 2010
338 a electronic2 rdacarrier
500 a QC 20100714 ändrad från submitted till published 20110103
520 a Purpose: Spectral imaging is a method in medical x-ray imaging to extract information about the object constituents by the material-specific energy dependence of x-ray attenuation. In particular, the detectability of a contrast agent can be improved over a lumpy background. We have investigated a photon-counting spectral imaging system with two energy bins for contrast-enhanced mammography. System optimization and the potential benefit compared to conventional non-energy-resolved imaging was studied.Methods: A framework for system characterization was set up that included quantum and anatomical noise, and a theoretical model of the system was benchmarked to phantom measurements.Results: It was found that optimal combination of the energy-resolved images corresponded approximately to minimization of the anatomical noise, and an ideal-observer detectability index could be improved more than a factor of two compared to absorption imaging in the phantom study. In the clinical case, an improvement close to 80% was predicted for an average glandularity breast, and a factor of eight for dense breast tissue. Another 70% was found to be within reach for an optimized system.Conclusions: Contrast-enhanced spectral mammography is feasible and beneficial with the current system, and there is room for additional improvements.
650 7a TEKNIK OCH TEKNOLOGIERx Annan teknikx Övrig annan teknik0 (SwePub)211992 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Other Engineering and Technologiesx Other Engineering and Technologies not elsewhere specified0 (SwePub)211992 hsv//eng
650 7a NATURVETENSKAPx Data- och informationsvetenskapx Datorseende och robotik0 (SwePub)102072 hsv//swe
650 7a NATURAL SCIENCESx Computer and Information Sciencesx Computer Vision and Robotics0 (SwePub)102072 hsv//eng
650 7a MEDICIN OCH HÄLSOVETENSKAPx Klinisk medicinx Radiologi och bildbehandling0 (SwePub)302082 hsv//swe
650 7a MEDICAL AND HEALTH SCIENCESx Clinical Medicinex Radiology, Nuclear Medicine and Medical Imaging0 (SwePub)302082 hsv//eng
650 7a TEKNIK OCH TEKNOLOGIERx Medicinteknikx Medicinsk laboratorie- och mätteknik0 (SwePub)206012 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Medical Engineeringx Medical Laboratory and Measurements Technologies0 (SwePub)206012 hsv//eng
653 a spectral imaging
653 a mammography
653 a contrast agent
653 a photon counting
653 a dual-energy subtraction
653 a energy weighting
653 a anatomical noise
653 a Other engineering physics
653 a Övrig teknisk fysik
653 a Image analysis
653 a Bildanalys
653 a Radiological research
653 a Radiologisk forskning
653 a Medical engineering
653 a Medicinsk teknik
700a Hemmendorff, Magnus4 aut
700a Cederström, Björnu KTH,Medicinsk bildfysik,Medical Imaging4 aut0 (Swepub:kth)u1oerth9
700a Åslund, Magnus4 aut
700a Danielsson, Matsu KTH,Medicinsk bildfysik,Medical Imaging4 aut0 (Swepub:kth)u1m3qe0f
710a KTHb Medicinsk bildfysik4 org
773t Medical physics (Lancaster)d : Wileyg 37:5, s. 2017-2029q 37:5<2017-2029x 0094-2405
856u https://kth.diva-portal.org/smash/get/diva2:278575/FULLTEXT01.pdfx primaryx Raw objecty fulltext:postprint
856u http://kth.diva-portal.org/smash/get/diva2:278575/FULLTEXT01
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11637
8564 8u https://doi.org/10.1118/1.3371689

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