Noninvasive Evaluation of Injectable Chitosan/Nano-Hydroxyapatite/Collagen Scaffold via Ultrasound

Table 1

The grey-scale value of ultrasound image on experimental group and control group after 0, 14, and 28 days of incubation. The values are shown as mean ± standard deviation.

Group	Time (day)	𝑛	GV	𝑃 value
CS	0	5	52.7 ± 13.0	1.00
CS/nHAC	0	5	51.4 ± 11.5
CS	14	5	68.6 ± 6.5	0.80
CS/nHAC	14	5	81.1 ± 4.6
CS	28	5	74.9 ± 7.5	0.02
CS/nHAC	28	5	99.8 ± 33.2