Figure 4From: Identification of hip fracture patients from radiographs using Fourier analysis of the trabecular structure: a cross-sectional study Comparison of ROC curves. Comparison of the ROC curves for the strongest classifier from the combination of (A) PCA analysis of the perpendicular profile (Lower neck region), (B) PCA analysis of the circular profile (Upper head region) and (C) Fractal analysis of any profile (Upper neck region).Back to article page