Quantification of Volumetric Bone Mineral Density of Proximal Femurs Using a Two-Compartment Model and Computed Tomography Images

Table 1

Comparison between real vBMD values and calculated vBMD values of different BMD sections using the TCM method at 80, 100, and 120 kVp. The values in parentheses were calculated by comparing to the real vBMD values.

Section	vBMD (g/cm^3)	80 kVp	100 kVp	120 kVp
	0.194	0.215 ± 0.08 (0.161)	0.207 ± 0.04 (0.086)	0.210 ± 0.07 (0.221)
	0.103	0.118 ± 0.08 (0.313)	0.117 ± 0.05 (0.138)	0.115 ± 0.06 (0.401)
	0.054	0.069 ± 0.07 (0.250)	0.065 ± 0.09 (0.509)	0.061 ± 0.07 (0.588)
Cortical wall	0.800	0.790 ± 0.014 (0.001)	0.785 ± 0.012 (0.001)	0.789 ± 0.04 (0.143)