highly significantp = 0.0001
Repeatabilities (intra-class correlation coefficients, r 1 ) of FAs calculated from mammograms were calculated on a random sub-set of 20 mammograms from the study and showed highly significant r 1 values (repeated measures ANOVA, 20 sets of mammograms, FA breast width r 1 0.98, p = 0.0001; FA breast height r 1 0.86, p = 0.0001).