Application of Ultrasound on Monitoring the Evolution of the Collagen Fiber Reinforced nHAC/CS Composites In Vivo

Table 1

Experimental data values for gray-scale value of the scaffold group and scaffold/rBMSCs group over time.

Time (w)	GV		P value
	Scaffold (mean ± SD)	Scaffold/BMSCs (mean ± SD)
0	63.85 ± 7.7	62.07 ± 5.49	0.655
1	82.88 ± 5.04	87.73 ± 7.17	0.205
2	99.29 ± 2.13	105.23 ± 14.03	0.35
4	111.85 ± 6.76	122.53 ± 6.03	0.016*
6	127.23 ± 6.35	140.93 ± 6.57	0.004**
8	144.99 ± 10.31	165.08 ± 5.95	0.011*
10	155.44 ± 8.51	173.09 ± 11.14	0.016*
12	176.62 ± 13.75	200.99 ± 12.39	0.009**

∗P < 0.05, **P < 0.01.