Figure 2.

(A ) Three 2D slices were selected for measurement of the radius of curvature (1/4, 1/2, and 3/4 positions). The radius of curvature on the anterior cortical was expressed by the mean of these three measures. B, C. Anterior cortical radius of curvature measurement. Three points (superior, middle, and inferior) were positioned on the anterior cortex, and then a circle was automatically defined. (B) A 54 year‐old female, radius of curvature = 29.18 mm. (C ) An 86 year‐old female, radius of curvature = 70.09 mm.