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Supplemental Digital Content 6: Inter-rater agreementInter-Rater Agreement • August 18th, 2019
The Bland-Altman plots demonstrate the inter-rater agreement of the measurements of the lesion size (Area, A), the cumulative circumference (Perimeter, B), the roundness of the lesion (Circularity, C) the maximal (Feretmax, D) and minimal (Feretmin, E) perpendicular distance between parallel tangents touching opposite sides of the lesion, and the number of atrophic spots (Focality, F). Measurement differences of both readers are plotted against their mean. The solid line indicates the mean difference and the dashed lines indicate the 95% limits of agreement. There were no systematic differences between the readers.
