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Breast Cancer Risk Analysis Based on a Novel Segmentation Framework for Digital Mammograms

  • Xin Chen
  • Emmanouil Moschidis
  • Chris Taylor
  • Susan Astley
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8673)

Abstract

The radiographic appearance of breast tissue has been established as a strong risk factor for breast cancer. Here we present a complete machine learning framework for automatic estimation of mammographic density (MD) and robust feature extraction for breast cancer risk analysis. Our framework is able to simultaneously classify the breast region, fatty tissue, pectoral muscle, glandular tissue and nipple region. Integral to our method is the extraction of measures of breast density (as the fraction of the breast area occupied by glandular tissue) and mammographic pattern. A novel aspect of the segmentation framework is that a probability map associated with the label mask is provided, which indicates the level of confidence of each pixel being classified as the current label. The Pearson correlation coefficient between the estimated MD value and the ground truth is 0.8012 (p-value<0.0001). We demonstrate the capability of our methods to discriminate between women with and without cancer by analyzing the contralateral mammograms of 50 women with unilateral breast cancer, and 50 controls. Using MD we obtained an area under the ROC curve (AUC) of 0.61; however our texture-based measure of mammographic pattern significantly outperforms the MD discrimination with an AUC of 0.70.

Keywords

Digital mammogram segmentation breast cancer risk mammographic density texture analysis 

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Xin Chen
    • 1
  • Emmanouil Moschidis
    • 1
  • Chris Taylor
    • 1
  • Susan Astley
    • 1
  1. 1.Centre for Imaging Sciences, Institute of Population HealthUniversity of ManchesterManchesterUK

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