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

Table 3

The kurtosis coefficient showing internal uniformity of scaffold at each time point.

Time (w)	Ultrasonic kurtosis coefficient		P value
	Scaffold; (mean ± SD)	Scaffold/BMSCs (mean ± SD)
0	9.89 ± 0.89	10.55 ± 0.72	0.187
1	3.8 ± 1.2	5.15 ± 1.24	0.084
2	0.69 ± 1.52	3.08 ± 1.31	0.016*
4	−0.14 ± 1.18	0.83 ± 1.35	0.961
6	−0.39 ± 1.9	4.34 ± 1.15	0.001**
8	1.35 ± 2.48	3.14 ± 1.18	0.142
10	1.07 ± 1.24	5.93 ± 2.3	0.002**
12	5 ± 1.21	12.9 ± 3.43	0.002**

∗P < 0.05, **P < 0.01.