Table 3.

Correlation (r ²) Between the Microstructural Measurements of µMR and µCT Images and the Mechanical Measurements of µCT Images

		µCT‐based mechanical properties
		Whole bone stiffness	Trabecular bone stiffness	E 11	E 22	E 33	G 23	G 31	G 12
µMRI microstructural measurements	BV/TV	0.44†	0.54†	0.37‡	0.45†	0.46†	0.41†	0.34‡	0.35‡
	Tb.N* (1/mm)	0.19§	0.34‡	0.33‡	0.36‡	0.45†	0.35‡	0.33‡	0.36‡
	Tb.Th* (mm)	NS	NS	NS	NS	NS	NS	NS	NS
	Tb.Sp* (mm)	(−) 0.24§	(−) 0.37‡	(−)0.35‡	(−) 0.35‡	(−) 0.45†	(−) 0.34‡	(−) 0.33‡	(−) 0.34‡
	Tb.N (1/mm)	0.27‡	0.48†	0.45†	0.51†	0.56†	0.50†	0.44†	0.48†
	Tb.Th (mm)	0.34‡	0.49†	NS	NS	NS	NS	NS	NS
	Tb.Sp (mm)	(−) 0.32‡	(−) 0.49†	(−) 0.41†	(−) 0.47†	(−) 0.50†	(−) 0.45†	(−) 0.39†	(−) 0.41†
	Ct.Th (mm)	0.32‡	NS	NS	NS	NS	NS	NS	NS
	BS/BV (1/mm)	(−) 0.37‡	(−) 0.21§	NS	NS	NS	NS	NS	NS
	SMI	(−) 0.41†	(−) 0.49†	(−) 0.39†	(−) 0.50†	(−) 0.45†	(−) 0.47†	(−) 0.36‡	(−) 0.39†
	DA	0.16§	NS	NS	NS	NS	NS	NS	NS
	Conn.D (1/mm3)	NS	0.39†	0.40†	0.48†	0.51†	0.48†	0.40†	0.47†
µCT microstructural measurements	BV/TV	0.35‡	0.59†	0.53†	0.69	0.67†	0.65†	0.53†	0.61†
	Tb.N* (1/mm)	NS	0.23§	0.31‡	0.36‡	0.48†	0.36‡	0.32‡	0.36‡
	Tb.Th* (mm)	0.27‡	0.34‡	0.26‡	0.48†	0.32‡	0.43†	0.25‡	0.33‡
	Tb.Sp* (mm)	(−) 0.23§	(−) 0.38‡	(−) 0.38†	(−) 0.40†	(−) 0.50†	(−) 0.38†	(−) 0.37‡	(−) 0.39†
	Ct.Th (mm)	0.34‡	NS	NS	NS	NS	NS	NS	NS
	BS/BV (1/mm)	(−) 0.29‡	(−) 0.43†	(−) 0.33‡	(−) 0.55†	(−) 0.43†	(−) 0.51†	(−) 0.33‡	(−) 0.42†
	SMI	(−) 0.32‡	(−) 0.56†	(−) 0.47†	(−) 0.64†	(−) 0.57†	(−) 0.63†	(−) 0.47†	(−) 0.54†
	DA	NS	NS	NS	NS	NS	NS	NS	NS
	Conn.D (1/mm3)	NS	NS	NS	NS	0.21§	NS	NS	NS

Note: (–) indicates negative correlation.

^† p < .001.

^‡ p < .01.

^§ p < .05.

NS: p > .05.