Image quality in digital radiography

dc.contributor.author	Σπυροπούλου, Βασιλική Α.	el
dc.contributor.author	Καλύβας, Νεκτάριος Ι.	el
dc.contributor.author	Γαϊτάνης, Αναστάσιος	el
dc.contributor.author	Κανδαράκης, Ιωάννης Σ.	el
dc.contributor.author	Παναγιωτάκης, Γεώργιος Σ.	el
dc.date.accessioned	2015-01-30T18:10:19Z
dc.date.available	2015-01-30T18:10:19Z
dc.date.issued	2015-01-30
dc.identifier.uri	http://hdl.handle.net/11400/5170
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://e-jst.teiath.gr/	en
dc.subject	Nuclear medicine
dc.subject	Πυρηνική ιατρική
dc.subject	Flat panel
dc.subject	Indirect detector
dc.subject	Linear cascaded systems theory
dc.subject	Image quality
dc.subject	Επίπεδη οθόνη
dc.subject	Έμμεσος ανιχνευτής
dc.subject	Θεωρία συστημάτων γραμμικής κλιμάκωσης
dc.subject	Ποιότητα εικόνας
dc.title	Image quality in digital radiography	en
heal.type	journalArticle
heal.secondaryTitle	first results of an analytical modeling approach	en
heal.generalDescription	Special issue: Scientific papers presented on the 3nd International Conference on Experiments/Process/System Modeling/Simulation & Optimization in Athens, 8-11 July, 2009. Mini symposium on Medical Imaging, organized by G. Panayiotakis, I. Kandarakis, G. Fountos and I. Valais	en
heal.classification	Medicine
heal.classification	Medical physics
heal.classification	Ιατρική
heal.classification	Ιατρική φυσική
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006614
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85083001
heal.classificationURI	N/A-Ιατρική
heal.classificationURI	N/A-Ιατρική φυσική
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85093011
heal.language	en
heal.access	free
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Tμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας	el
heal.publicationDate	2010
heal.bibliographicCitation	Spyropoulou, V.A., Kalyvas, N.I., Gaitanis, A., Kandarakis, I.S. and Panayiotakis, G.S. (2010). Image quality in digital radiography: first results of an analytical modeling approach. "e-Journal of Science & Technology". [Online] 5(2): 55-62. Available from: http://e-jst.teiath.gr/	en
heal.abstract	Any X-ray detector for medical imaging needs to serve the purpose of efficiently absorbing the impinging X-ray flux and converting it into a geometry-conserving digital image signal. The detector used should be optimized for each X-ray imaging modality. The aim of this work was to develop an analytical model simulating an indirect flat panel digital detector which could be later utilized in Computed Tomography Breast Imaging and to evaluate 2-dimensional images produced by irradiating a software phantom consisting of different orthogonal structures (tumor and microcalcifications). The detector was modeled within the framework of the linear cascaded systems (LCS) theory. The image unsharpness as well as the statistical noise, where post introduced in the final image, by utilizing the Transfer Function and the Noise Power Spectrum derived from the LCS model. Phantom images of various exposures conditions were derived. It was observed that the structures of the phantom were more visible as the kV and tissue thickness increased. Finally the microcalcifications were distinguished more easily than the tumors.	en
heal.publisher	Νερατζής, Ηλίας	el
heal.publisher	Σιανούδης, Ιωάννης	el
heal.publisher	Βαλαής, Ιωάννης Γ.	el
heal.publisher	Φούντος, Γεώργιος Π.	el
heal.journalName	e-Journal of Science & Technology	en
heal.journalName	e-Περιοδικό Επιστήμης & Τεχνολογίας	el
heal.journalType	peer-reviewed
heal.fullTextAvailability	true