Characteristics of Lumbar Bone Density in Middle-Aged and Elderly Subjects: A Correlation Study between T-Scores Determined by the DEXA Scan and Hounsfield Units from CT

Table 3

Correlation between the regional CT values and the total CT values in different lumbar sequences.

Different regions	Correlation coefficient in different lumbar sequences (r)
	L1	L2	L3	L4
Region 1	0.868	0.827	0.857	0.757
Region 2	0.886	0.895	0.898	0.844
Region 3	0.924	0.917	0.835	0.831
Region 4	0.866	0.806	0.818	0.909
Region 5	0.875	0.862	0.863	0.854
Region 6	0.844	0.828	0.778	0.739
Region 7	0.895	0.862	0.860	0.885
Region 8	0.918	0.914	0.879	0.895
Region 9	0.862	0.856	0.803	0.874