Table 3 Correlation results (Spearman’s rho coefficients) between similarity indices (Dice coefficient and average Hausdorff distance) and size parameters of the segmented metastases for both 2D and 3D ROIs
From: Impact of inter-reader contouring variability on textural radiomics of colorectal liver metastases
Correlation | 2D ROI | 3D ROI | ||
|---|---|---|---|---|
DC | HD | DC | HD | |
ROI manual axial diameter | 0.42 (p < 0.001) | -0.04 (p = 0.760) | 0.45 (p < 0.001) | 0.45 (p < 0.001) |
ROI maximum 3D diameter | 0.37 (p < 0.001) | -0.12 (p = 0.382) | 0.42 (p < 0.001) | 0.41 (p = 0.002) |
ROI volume/area | 0.30 (p < 0.001) | -0.17 (p = 0.209) | 0.36 (p < 0.001) | 0.30 (p = 0.024) |