Research Article

Statistical Evaluation of a Fully Automated Mammographic Breast Density Algorithm

Figure 1

A sequence of processed images generated at various steps of the algorithm for estimating area-based mammographic density: (a) a “For Presentation” mammogram from our sample; (b) the image after a mask has been applied to identify the breast envelope; (c) the area of dense tissue (red pixels); and (d) the region of interest as a binary map of the breast envelope. The algorithm calculates percent breast density as the number of red pixels in Panel (c) divided by the number of white pixels in Panel (d).
651091.fig.001a
(a) Source
651091.fig.001b
(b) Mask
651091.fig.001c
(c) Density
651091.fig.001d
(d) ROI