Fig. 5

a Spearman’s correlation coefficient comparing calcinosis cutis lesional areas measured by a two independent radiologists and c a radiologist and a computer scientist. Bland-Altman plot, analyzing the agreement between b the two independent assessors, and d the radiologist’s and computer scientist’s measurement methods. Red lines represent the 95% limits of agreement, purple and green lines represent the mean difference of area measurements between the two methods and line of unity, respectively