Figure 4
From: Accuracy of facial skeletal surfaces segmented from CT and CBCT radiographs
Box plots showing the intra-operator differences between repeatedly segmented facial surface models from radiographic volumes. The upper graphs show Mean Absolute Distances (MAD) between the corresponding surface models and the lower graphs the Standard Deviations of the absolute distances (SD). The lines connect variables that show significant differences (p < 0.05) detected through Kruskal–Wallis, followed by Mann–Whitney U test (Bonferroni adjusted). Outliers are shown as black circles (further from the median more than 1.5 times the IQR) or asterisks in more extreme cases (further from the median more than 3 times the IQR).
