Table 2. Signal intensity (adjusted by cerebrospinal fluid) of endplate region.

		After injection*
	Before injection	2w	4w	8w	P value
T1WI
TSB	2.61±0.48	2.67±0.29	2.28±0.14	2.54±0.68	0.306
Group I	2.72±0.37	1.60±0.72	1.21±0.85	1.03±0.37	0.034
Group II	2.68±0.23	1.75±0.64	1.34±0.57	0.82±0.37	0.028
Group III	2.83±0.18	1.52±0.48	1.13±0.22	0.76±0.45	0.019
T2WI
TSB	0.41±0.10	0.48±0.06	0.54±0.07	0.68±0.09	0.487
Group I	0.39±0.09	0.43±0.04	0.52±0.06	0.76±0.10	0.039
Group II	0.42±0.10	0.48±0.07	0.54±0.08	0.79±0.04	0.025
Group III	0.43±0.08	0.41±0.09	0.38±0.10	0.31±0.05	0.043

*The values are given as the mean and the standard deviation.