Digital mammography

dc.contributor.author	Κωνσταντινίδης, Αναστάσιος Χ.	el
dc.date.accessioned	2015-02-14T14:19:29Z
dc.date.available	2015-02-14T14:19:29Z
dc.date.issued	2015-02-14
dc.identifier.uri	http://hdl.handle.net/11400/6247
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	Digital X-ray detectors
dc.subject	Physical Performance
dc.subject	Modulation Transfer Function
dc.subject	Noise Power Spectrum
dc.subject	Mammography
dc.subject	Image Quality
dc.subject	Nuclear medicine
dc.subject	Ανιχνευτές ψηφιακής ακτινογραφίας
dc.subject	Φυσικές επιδόσεις
dc.subject	Φάσμα ισχύος θορύβου
dc.subject	Μαστογραφία
dc.subject	Ποιότητα εικόνας
dc.subject	Πυρηνική ιατρική
dc.title	Digital mammography	en
heal.type	journalArticle
heal.secondaryTitle	from physical performance evaluation to image quality analysis	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.publicationDate	2014
heal.bibliographicCitation	Konstantinidis, A.C. (2014). Digital mammography: from physical performance evaluation to image quality analysis. "e-Journal of Science & Technology". [Online] 9(3): 1-9. Available from: http://e-jst.teiath.gr/	en
heal.abstract	Since the early 1990s digital X-ray detectors have been used extensively for medical imaging applications, such as Mammography, General Radiography, Computed Tomography, Tomosynthesis, Fluoroscopy, etc. The quality of a radiograph needs to be adequate to provide the required information for a given task. The primary physical parameters that affect image quality are spatial resolution, noise, and contrast. The Modulation Transfer Function (MTF) is the combination of contrast and resolution, the Noise Power Spectrum (NPS) combines the noise and resolution, and the Signal-to-Noise Ratio (SNR) expresses the ratio between signal and noise in large scale objects (i.e. at zero spatial frequency). The combination of SNR, MTF and NPS determines the Detective Quantum Efficiency (DQE) which represents the ability to visualize object details of a certain size and contrast. This study is using image simulation to estimate how the experimentally measured SNR, MTF and NPS of several digital X-ray detectors affect the mammographic image quality. The latter is measured in terms of Contrast-to-Noise Ratio (CNR) and Contrast-Detail (CD) analysis, using synthetic breast and CDMAM phantoms, respectively.	en
heal.publisher	Νερατζής, Ηλίας	el
heal.publisher	Σιανούδης, Ιωάννης	el
heal.journalName	e-Journal of Science & Technology	en
heal.journalName	e-Περιοδικό Επιστήμης & Τεχνολογίας	el
heal.journalType	peer-reviewed
heal.fullTextAvailability	true