Effect of surface-partial-volume correction and adaptive threshold on segmentation of uroliths in computed tomography
Fig 4
Bland-Altman plots of estimated vs. reference standard diameters (A, B, E, F, I, J, M, N) and volumes (C, D, G, H, K, L, O, P) for all four segmentation approaches (A-D, E-H, I-L, M-P).
Dashed lines in Bland-Altman plots correspond to mean and 1.96* standard deviation. The plots were created with all 101 uroliths using the optimal average parameters from the repeated optimization and validation procedure (see Table 1). Obviously, all approaches yield similar results, with comparable mean differences and standard deviations.