Please use this identifier to cite or link to this item: http://hdl.handle.net/11400/4258
Title: The effect of energy weighting on the SNR under the influence of non-ideal detectors in mammographic applications
Authors: Πατατούκας, Γ.
Γαϊτάνης, Αναστάσιος
Καλύβας, Νεκτάριος Ι.
Λιαπαρίνος, Παναγιώτης Φ.
Νικολόπουλος, Δημήτριος Σ.
Contributors: Κωνσταντινίδης, Αναστάσιος Χ.
Κανδαράκης, Ιωάννης Σ.
Κάβουρας, Διονύσης Α.
Παναγιωτάκης, Γεώργιος Σ.
Item type: Journal article
Keywords: Energy weighting;X-ray mammography;Ενέργεια στάθμισης;Μαστογραφία ακτίνων Χ
Subjects: Medicine
Physics
Ιατρική
Φυσική
Issue Date: 19-Jan-2015
2006
Date of availability: 19-Jan-2015
Publisher: Elsevier Science Ltd
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.
Language: English
Citation: 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]
Journal: Nuclear Instruments and Methods in Physics Research A
Type of Journal: With a review process (peer review)
Access scheme: Publicly accessible
License: Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες
URI: http://hdl.handle.net/11400/4258
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