Figure 3.

Hierarchical cluster analysis of the correlations between the CT attenuation of each bone of the wrist and forearm. Radius—distal third of the radius; radius UD—ultradistal radius (radius epiphysis and metaphysis); radius 33%—distal third of the radial shaft; ulna—distal third of the ulna; ulna UD—distal ulna (ulnar epiphysis and metaphysis); ulna 33%—distal third of the ulnar shaft; 1st metacarpal—proximal third of the first metacarpal; 2nd metacarpal—proximal third of the second metacarpal; 3rd metacarpal—proximal third of the third metacarpal; 4th metacarpal—proximal third of the fourth metacarpal; 5th metacarpal—proximal third of the fifth metacarpal.