Abstract
A quality control system for digital mammography consisting of a phantom for daily constancy test and software for image analysis and data management has been developed. The purpose of this study was to verify the measurement accuracy of the phantom and software, which was carried out by comparison of the result obtained from the method in accordance with European Guidelines for the following image characteristics; 1) Contrast to Noise Ratio (CNR) 2) Geometric distortion 3) Modulation Transfer Function (MTF) 4) Homogeneity 5) Missed tissue at chest wall side and 6) Threshold contrast visibility. In CNR and MTF, relative differences of 10% and 20% respectively were confirmed though, they were due to the difference in samples used for each measurement and in measurement position, and then those differences were identified as being no problem for the constancy test.
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References
European Guidelines for Quality Assurance in Breast Cancer Screening and Diagnosis, 4th Edn, European Commission, Luxembourg (2006)
Evaluation and routine testing in medical imaging departments - Part 3-2: Acceptance tests - Imaging performance of mammographic X-ray equipment, IEC61223-3-2 Ed2, Geneva, Switzerland (2007)
Medical electronics equipment-Characteristics of digital x-ray imaging devices Part 1-2: Determination of detective quantum efficiency, IEC62220-1-2, Geneva, Switzerland (2007)
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© 2008 Springer-Verlag Berlin Heidelberg
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Kusunoki, T. et al. (2008). Comparison between Physical Image Quality as Measured by a Newly Developed Phantom Dedicated for Digital Mammography QC and That by European Guidelines Methods. In: Krupinski, E.A. (eds) Digital Mammography. IWDM 2008. Lecture Notes in Computer Science, vol 5116. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-70538-3_28
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DOI: https://doi.org/10.1007/978-3-540-70538-3_28
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-70537-6
Online ISBN: 978-3-540-70538-3
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