Using Magnetic Resonance for Predicting Femoral Strength: Added Value with respect to Bone Densitometry

Table 1

Descriptive statistics of 18 femur specimens.

	Unit	Mean	SD
Age	Year	83.9	6.5
pQCT-BMD1	mg/mL	250.4	58.2
pQCT-BMD2	mg/mL	230.2	53.6
pQCT-BMD3	mg/mL	228.3	45.4
pQCT-BMD4	mg/mL	241.2	51.6
DXA-BMDtot	mg/cm^2	763.0	131.0
DXA-BMDne	mg/cm^2	613.0	123.0
DXA-CoTne	mm	1.3	0.3
DXA-NSA	Degree	131.8	4.5
MRI-BMD1	mg/mL	212.4	86.5
MRI-BMD2	mg/mL	200.1	79.9
MRI-BMD3	mg/mL	199.9	76.3
MRI-BMD4	mg/mL	180.2	71.5
Load	N	2005.8	957.1

pQCT-BMD₁, pQCT-BMD₂, pQCT-BMD₃, and pQCT-BMD₄: total bone mineral density measured with pQCT, respectively, at the first, second, third, and fourth slice.
DXA-BMD_tot, DXA-BMd_ne, DXA-CoT_ne, and DXA-NSA: bone mineral density of the total hip and at the level of the neck, cortical thickness at the level of the neck and neck shaft angle, measured with DXA.
MRI-BMD₁, MRI-BMD₂, MRI-BMD₃, and MRI-BMD₄: total bone mineral density measured with MRI, respectively, at the first, second, third, and fourth slice.