Title
Breast cancer risk analysis based on a novel segmentation framework for digital mammograms.
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.
Year
DOI
Venue
2014
10.1007/978-3-319-10404-1_67
Lecture Notes in Computer Science
Keywords
Field
DocType
Digital mammogram,segmentation,breast cancer risk,mammographic density,texture analysis
Computer vision,Pearson product-moment correlation coefficient,Breast cancer,Pattern recognition,Segmentation,Feature extraction,Radiography,Artificial intelligence,Confidence interval,Medicine,Cancer,Risk factor
Conference
Volume
Issue
ISSN
8673
Pt 1
0302-9743
Citations 
PageRank 
References 
0
0.34
3
Authors
4
Name
Order
Citations
PageRank
Xin Chen1185.85
Emmanouil Moschidis2154.60
Christopher J. Taylor35140819.69
Susan M. Astley425766.61