Advertisement

Peripheral Thickness Correction for Volumetric Breast Density Estimation

  • D. Rico
  • J. Yang
  • B. Augustine
  • G. E. Mawdsley
  • M. J. Yaffe

Abstract

The computation of volumetric mammographie density in a breast is based on both image data and knowledge of the thickness at each pixel. Our goal is to compute a thickness map at the periphery of the breast in order to improve the accuracy of measurement of volumetric breast density. Two methods are considered. Using a breast phantom to simulate the thickness changes in an image, we have modelled the radiation profile through the edge of the breast, based on a phantom whose shape approximates a semi-circle. In a second method, direct thickness calibration is performed using a tissue- equivalent triangular attenuator. The phantom thickness map in the peripheral region is then mapped to that of the breast image using a thin-plate spline interpolation algorithm.

Keywords

Outer Edge Mammographic Density Peripheral Region Digital Mammography Fibroglandular Tissue 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Wolfe, J.N., Risk for breast cancer development determined by mammographie parenchymal pattern, Cancer 37, 2486–2492, 1976.PubMedCrossRefGoogle Scholar
  2. 2.
    Boyd, N.F., Lockwood, G.A., Byng, J.W., Tritchler, D.L., Yaffe, M.J.: Mammographic densities and breast cancer risk, Cancer Epidemiol. Biomark. Prev., 7, 1133–1144, 1998.Google Scholar
  3. 3.
    Byng, J.F., Boyd, N.F., Fishell, E., Jong, R.A., Yaffe, M J.: The Quantitative Analysis of Mammographie Densities, Physics in Medicine and Biology, 39, 1629–1638, 1994.PubMedCrossRefGoogle Scholar
  4. 4.
    Yang. J., Rico D., Mawdsley G.E., Yaffe, M.J.: Volumetric Breast Density Estimation Method for Full-Field Digital Mammography, RSNA, 2002.Google Scholar
  5. 5.
    Bookstein, F.L: Principal Warps: Thin-Plate spline and the decomposition of deformations. IEEE Trans. Patt. Anal. Machine Intell., 11, 567–585, 1989CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • D. Rico
    • 1
  • J. Yang
    • 1
  • B. Augustine
    • 1
  • G. E. Mawdsley
    • 1
  • M. J. Yaffe
    • 1
  1. 1.Sunnybrook and Women’s College Health Science CentreTorontoCanada

Personalised recommendations