Abstract
The purpose of this work was to investigate whether extra flat field corrections should be applied prior to the calculations of quality control quantities and whether there are necessary precautions regarding flat fielding in digital mammography. Effects from using one standard flat field correction for all imaging situations or absence of correction procedures were examined using homogenous PMMA slabs. Differences in field profiles for various exposure geometries and breast thicknesses were quantified. For three systems the maximal deviation of averaged pixel values (along a profile of ROIs parallel to the chest wall) varied from 1.3 % to 6.8 % over the whole image and from 0.6 % to 2.6 % if the analysis is limited to the central part. Extra flat field corrections are not necessary for most applications. If required, the corrections should be performed from images acquired with the same manual exposure and not after a time gap.
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References
Handbook of Medical Imaging, vol. 1. Physics and Psychophysics. In: Beutel, J., et. al.(eds.) SPIE, Bellingham, WA (2000)
Saunders Jr., R.S., Samei, E., Jesneck, J.L., Lo, J.L.: Physical characterization of a prototype selenium-based full field digital mammography detector. Med. Phys. 32, 588–599 (2005)
Abramoff, M.D., Magelhaes, P.J., Ram, S.J.: Image processing with ImageJ. Biophotonics International 11, 36–42 (2004)
Mammomat Novation DR Users Manual, Siemens AG (2005)
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© 2006 Springer-Verlag Berlin Heidelberg
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Pöyry, P., Zanca, F., Bosmans, H. (2006). Experimental Investigation of the Necessity for Extra Flat Field Corrections in Quality Control of Digital Mammography. In: Astley, S.M., Brady, M., Rose, C., Zwiggelaar, R. (eds) Digital Mammography. IWDM 2006. Lecture Notes in Computer Science, vol 4046. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11783237_64
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DOI: https://doi.org/10.1007/11783237_64
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-35625-7
Online ISBN: 978-3-540-35627-1
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