Sökning: WFRF:(Åslund Magnus) > Contrast-enhanced s...
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000 | 04422naa a2200625 4500 | |
001 | oai:DiVA.org:kth-11637 | |
003 | SwePub | |
008 | 091127s2010 | |||||||||||000 ||eng| | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-116372 URI |
024 | 7 | a https://doi.org/10.1118/1.33716892 DOI |
040 | a (SwePub)kth | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Fredenberg, Erik,c PhD,d 1979-u KTH,Medicinsk bildfysik,Medical Imaging4 aut0 (Swepub:kth)u17g0bk4 |
245 | 1 0 | a Contrast-enhanced spectral mammography with a photon-counting detector |
264 | c 2010-04-12 | |
264 | 1 | b 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 | 7 | a TEKNIK OCH TEKNOLOGIERx Annan teknikx Övrig annan teknik0 (SwePub)211992 hsv//swe |
650 | 7 | a ENGINEERING AND TECHNOLOGYx Other Engineering and Technologiesx Other Engineering and Technologies not elsewhere specified0 (SwePub)211992 hsv//eng |
650 | 7 | a NATURVETENSKAPx Data- och informationsvetenskapx Datorseende och robotik0 (SwePub)102072 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Computer and Information Sciencesx Computer Vision and Robotics0 (SwePub)102072 hsv//eng |
650 | 7 | a MEDICIN OCH HÄLSOVETENSKAPx Klinisk medicinx Radiologi och bildbehandling0 (SwePub)302082 hsv//swe |
650 | 7 | a MEDICAL AND HEALTH SCIENCESx Clinical Medicinex Radiology, Nuclear Medicine and Medical Imaging0 (SwePub)302082 hsv//eng |
650 | 7 | a TEKNIK OCH TEKNOLOGIERx Medicinteknikx Medicinsk laboratorie- och mätteknik0 (SwePub)206012 hsv//swe |
650 | 7 | a 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 | |
700 | 1 | a Hemmendorff, Magnus4 aut |
700 | 1 | a Cederström, Björnu KTH,Medicinsk bildfysik,Medical Imaging4 aut0 (Swepub:kth)u1oerth9 |
700 | 1 | a Åslund, Magnus4 aut |
700 | 1 | a Danielsson, Matsu KTH,Medicinsk bildfysik,Medical Imaging4 aut0 (Swepub:kth)u1m3qe0f |
710 | 2 | a KTHb Medicinsk bildfysik4 org |
773 | 0 | t Medical physics (Lancaster)d : Wileyg 37:5, s. 2017-2029q 37:5<2017-2029x 0094-2405 |
856 | 4 | u https://kth.diva-portal.org/smash/get/diva2:278575/FULLTEXT01.pdfx primaryx Raw objecty fulltext:postprint |
856 | 4 | u http://kth.diva-portal.org/smash/get/diva2:278575/FULLTEXT01 |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11637 |
856 | 4 8 | u https://doi.org/10.1118/1.3371689 |
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