Abstract
X-ray field phase differences caused by an object can induce enhancement of the object edges in a radiological image, thus facilitating its visualization. We present numerical simulations and experimental data for the enhancement of weakly attenuating test object edges, imaged in-line, under magnification conditions, with a digital mammography unit (Mo/Mo anode/filter, 0.1 mm focal spot size, 25 kV, source-to-detector distance equal to 0.66 m, 70 ..m pixel size). Images show increased illumination at the edges of TOR[MAM] phantom filaments and air bubble packaging film structures. The enhancement is about 1-3% over the background, thus requiring low noise conditions for visualization.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2009 International Federation for Medical and Biological Engineering
About this paper
Cite this paper
Brandan, M.E., Chevalier, M., Guibelalde, E., Rodrigo, J.A., Alieva, T. (2009). Observation of edge-enhancement in digital images obtained with a clinical mammography unit. In: Dössel, O., Schlegel, W.C. (eds) World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany. IFMBE Proceedings, vol 25/2. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-03879-2_94
Download citation
DOI: https://doi.org/10.1007/978-3-642-03879-2_94
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-03878-5
Online ISBN: 978-3-642-03879-2
eBook Packages: EngineeringEngineering (R0)