Accoustic Properties for

Body Tissue-

Body Tissues	Longitudinal Velocity		Density g/cm3	Acoustic Impedance g/cm2-sec x105
	cm/m s	in/m s
Beef	0.155	0.061	1.08	1.68
Brain Tissue	0.149	0.0587	1.04	1.55
Human Tissue	0.147	0.0579	1.07	1.58
Kidney	0.154	0.0606	1.05	1.62
Liver	0.154	0.0606	1.07	1.65
Spleen	0.15	0.0591	1.07	1.60

Data compiled by Xactex Corporation.  Sources of original data are unknown.

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