Fig. 5From: “Simple mechanical devices did not improve pelvis positioning in AP pelvis radiographs for reliable assessment of the acetabular orientation”Bland-Altman-Plots showed a low correlation for the continuous measurement values between the radiographs of a positioning I, b positioning II, c positioning III and the corresponding CT scans (upper red line: + 1.96xSD, blue line: mean of the difference, lower red line: − 1.96xSD)Back to article page