“…ImageJ, a public-domain Java image processing program that is freely available from the National Institutes of Health (http://rsb.info.nih.gov/ij/), has been shown to be extremely effective at measuring the area of elliptical or irregularly shaped selections. [23][24][25] The program simplifies area calculations by digitally measuring the number of pixels within a selection. As such, it may be easily be applied to the previously mentioned glenoid bone loss quantification schemes for enhancement of accuracy in measuring the area of a best-fit circle, as well as the area of the irregularly shaped bone defect.…”