Osteogenesis Capability and Degradation Property Evaluation of Injectable Biomaterials: Comparison of Computed Tomography and Ultrasound

Table 4

The 1 h/28 d ratios of CT value and ultrasound GV and of CT mask volume and ultrasound section pixel. Both CT and ultrasound are approximate to evaluate osteogenesis capability and degradation property, and CS/nHAC is more suitable for bone tissue engineering than CS.

Group	Percentage variation (1 h/28 d)
	Osteogenesis capability		Degradation property
	CT HU𝑚	Ultrasound GV	CT volume	Ultrasound section area
CS	214.13%	187.33%	35.36%	30.93%
CS/nHAC	381.18%	368.43%	55.34%	57.45%
𝑃 value	0.009	0.000	0.030	0.008