Design and Evaluation of a Phantom with Structured Background for Digital Mammography and Breast Tomosynthesis

  • Lesley Cockmartin
  • Nicholas Marshall
  • Hilde Bosmans
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7361)


The presence of anatomical structure in 2D mammograms and digital breast tomosynthesis (DBT) images impacts cancer detection. Previous work has shown that the low frequency range of the power spectrum (PS) of breast structure in mammograms can be characterized by a power law with exponent (β). This work reports our experience with the development of a self-similar phantom that produces a structured background in both 2D mammography and breast tomosynthesis. Theory predicts that this phantom produces a PS with power law exponent related to its fractal dimension. Results of a phantom with acrylic spheres in air and in water respectively, evaluated on a Siemens mammographic system with tomosynthesis option, show power law exponents of 2.90 and 3.18 for 2D, 2.91 and 2.45 for DBT projections and, 2.06 and 1.66 for DBT reconstructions. These values were within the range of the exponents measured in patient data.


2D digital mammography digital breast tomosynthesis phantom anatomical breast structure power spectrum analysis 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Lesley Cockmartin
    • 1
  • Nicholas Marshall
    • 1
    • 2
  • Hilde Bosmans
    • 1
    • 2
  1. 1.Catholic University LeuvenBelgium
  2. 2.Department of RadiologyUniversity Hospital GasthuisbergLeuvenBelgium

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