Dual Energy Method for Breast Imaging: A Simulation Study
Joint Authors
Fountos, George P.
Koukou, V.
Martini, N.
Sotiropoulou, P.
Fountzoula, C.
Nikiforidis, G.
Kandarakis, Ioannis S.
Michail, Christos M.
Kalyvas, Nektarios E.
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-07-13
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Dual energy methods can suppress the contrast between adipose and glandular tissues in the breast and therefore enhance the visibility of calcifications.
In this study, a dual energy method based on analytical modeling was developed for the detection of minimum microcalcification thickness.
To this aim, a modified radiographic X-ray unit was considered, in order to overcome the limited kVp range of mammographic units used in previous DE studies, combined with a high resolution CMOS sensor (pixel size of 22.5 μm) for improved resolution.
Various filter materials were examined based on their K-absorption edge.
Hydroxyapatite (HAp) was used to simulate microcalcifications.
The contrast to noise ratio (CNRtc) of the subtracted images was calculated for both monoenergetic and polyenergetic X-ray beams.
The optimum monoenergetic pair was 23/58 keV for the low and high energy, respectively, resulting in a minimum detectable microcalcification thickness of 100 μm.
In the polyenergetic X-ray study, the optimal spectral combination was 40/70 kVp filtered with 100 μm cadmium and 1000 μm copper, respectively.
In this case, the minimum detectable microcalcification thickness was 150 μm.
The proposed dual energy method provides improved microcalcification detectability in breast imaging with mean glandular dose values within acceptable levels.
American Psychological Association (APA)
Koukou, V.& Martini, N.& Michail, Christos M.& Sotiropoulou, P.& Fountzoula, C.& Kalyvas, Nektarios E.…[et al.]. 2015. Dual Energy Method for Breast Imaging: A Simulation Study. Computational and Mathematical Methods in Medicine،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1057940
Modern Language Association (MLA)
Koukou, V.…[et al.]. Dual Energy Method for Breast Imaging: A Simulation Study. Computational and Mathematical Methods in Medicine No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1057940
American Medical Association (AMA)
Koukou, V.& Martini, N.& Michail, Christos M.& Sotiropoulou, P.& Fountzoula, C.& Kalyvas, Nektarios E.…[et al.]. Dual Energy Method for Breast Imaging: A Simulation Study. Computational and Mathematical Methods in Medicine. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1057940
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1057940