Fig. 1.

Scatter plots of imaging specialist assessments of AAC-24 scores (a) vs. the ML-AAC-24 scores for Hologic-4500A (training), (b) Hologic Horizon (testing), (c) GE Lunar Prodigy dual-energy (fine tuning & testing) and (d) GE iDXA dual-energy (fine tuning & testing). The blue line represents the regression line and ‘r’ is the Pearson correlation coefficient. Below each plot is the confusion matrix for three-class classification of the AAC scores. Each coloured shape represents an individual data point.