The Value of the Model and Quantitative Parameters of Contrast-Enhanced Ultrasound in Judging the Severity of SHPT

Table 3

The enhancing model of CEUS of different volumes in two phases.

Phases		Groups		value
		Volume < 0.5 cm^3	Volume ≥ 0.5 cm^3
Wash-in phase	High enhanced	11	15	<0.05
	Low enhanced	16	0
Wash-out phase	High enhanced	3	15	<0.05
	Low enhanced	24	0

Note. All data were analyzed by applying the χ² test.