Table 4-2.

Thresholds for Murine Intestinal Hemorrhage as a Function of Frequency^a

	Threshold Levels
Frequency (MHz)	p+ (MPa)	P− (MPa)	ISPPA (W/cm2)	$\text{p}/\sqrt{\text{f}}$
0.7	0.9	0.9	16	1.1
1.1	1.3	1.5	57	1.4
2.4	11.5	3.9	1075	2.5
3.6	7.8	2.8	505	1.5

^aDalecki et al (1995b).