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. 2015 Mar;15(1):42–52.

Figure 1.

Figure 1

Examples of qXRI assessment. A standardized X-ray was taken and the gray level was adjusted to the plastic and steel standards. Then the trabecular and cortical ROI were overimposed and the corresponding area was selected. To allow a visual characterization of the gray level distribution, a 16 color look-up table was applied. The frequency distribution of each gray level was plotted and the mean gray level determined. Then the GLmean was converted into AMD by using the aluminum step wedge standard.