The effect of energy weighting on the SNR under the influence of non-ideal detectors in mammographic applications

dc.contributor.author	Πατατούκας, Γ.	el
dc.contributor.author	Γαϊτάνης, Αναστάσιος	el
dc.contributor.author	Καλύβας, Νεκτάριος Ι.	el
dc.contributor.author	Λιαπαρίνος, Παναγιώτης Φ.	el
dc.contributor.author	Νικολόπουλος, Δημήτριος Σ.	el
dc.date.accessioned	2015-01-19T14:51:05Z
dc.date.available	2015-01-19T14:51:05Z
dc.date.issued	2015-01-19
dc.identifier.uri	http://hdl.handle.net/11400/4258
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://www.elsevier.com	el
dc.subject	Energy weighting
dc.subject	X-ray mammography
dc.subject	Ενέργεια στάθμισης
dc.subject	Μαστογραφία ακτίνων Χ
dc.title	The effect of energy weighting on the SNR under the influence of non-ideal detectors in mammographic applications	en
heal.type	journalArticle
heal.classification	Medicine
heal.classification	Physics
heal.classification	Ιατρική
heal.classification	Φυσική
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006614
heal.classificationURI	http://skos.um.es/unescothes/C02994
heal.classificationURI	N/A-Ιατρική
heal.classificationURI	N/A-Φυσική
heal.contributorName	Κωνσταντινίδης, Αναστάσιος Χ.	el
heal.contributorName	Κανδαράκης, Ιωάννης Σ.	el
heal.contributorName	Κάβουρας, Διονύσης Α.	el
heal.contributorName	Παναγιωτάκης, Γεώργιος Σ.	el
heal.identifier.secondary	doi:10.1016/j.nima.2006.08.019
heal.language	en
heal.access	free
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2006
heal.bibliographicCitation	Patatoukas, G., Gaitanis, A., Kalivas, N., Liaparinos, P., Nikolopoulos, D., et al. (December 2006). The effect of energy weighting on the SNR under the influence of non-ideal detectors in mammographic applications. Nuclear Instruments and Methods in Physics Research A. 569(2). pp. 260–263. Elsevier Science Ltd. Available from: http://www.sciencedirect.com [Accessed 01/09/2006]	en
heal.abstract	This work investigates the effect of the energy-weighting technique on the signal to noise ratio (SNR) response of X-ray imaging detectors. So far in the literature all scintillation-detector characteristics (detection efficiency, conversion efficiency, light-attenuation effects, etc) that degrade image quality have been ignored. A theoretical evaluation of the scintillator's SNR output was carried out. An algorithm was produced to describe the variation of the weighting factor, and SNR, with respect to the anode material (Mo or W), in a particular energy range (25–40 keV), typical for mammography, using two different phantoms. Results show that under non-ideal conditions the ratio of the weighted SNR to the original SNR appears to be increasing from values that are close to unity, and under specific conditions, can reach values up to 30. For the further investigation of this method, a more complex, simulated computed tomography breast imaging system was modeled and studied for various parameters such as breast software phantoms, scintillation materials and reconstruction filters.	en
heal.publisher	Elsevier Science Ltd	en
heal.journalName	Nuclear Instruments and Methods in Physics Research A	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true