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

Table 2

The cross-section area 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	Pixel	𝑃 value
CS	0	5	28982.8 ± 6782.9	0.16
CS/nHAC	0	5	35662.0 ± 3321.5
CS	14	5	17084.8 ± 256.3	0.04
CS/nHAC	14	5	35662.0 ± 6341.7
CS	28	5	5169.2 ± 613.4	0.00
CS/nHAC	28	5	22050.2 ± 3449.4