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. Author manuscript; available in PMC: 2012 Nov 1.
Published in final edited form as: Acad Radiol. 2011 Nov;18(11):1430–1436. doi: 10.1016/j.acra.2011.07.011

Figure 1.

Figure 1

Image examples. From left to right, this shows images with the largest box area / breast area ratio, image with the medium ratio, and the image with the smallest ratio (right). The image areas from left to right in pixel units are 2426894, 1324519 and 386023. The outlined box in 3 × 3 cm2 (300 ×300 pixels) and is vertically centered on the segmented image vertical centroid coordinate. RSDX breast density was derived from this region. These images are processed clinical display images. We use these as raw image surrogates for display purposes because the raw images are not useful for display illustrations without manipulation.