Table 1.

Blood vessel density (mean and standard deviation) for each tumor segment for each tumor as compared with the corresponding targeted intensity obtained with ultrasonic MI. All values were normalized to the maximum blood vessel density for each tumor.

		Histology	Ultrasound
Animal n	Approx. Dist. From Center of Tumor [mm]	Norm, Mean Blood Vessel Density [Count/Unit Area]	Norm, Mean Targeting Intensity [Intensity/Unit Area]
1	−3.8	0.52 ± .12	1.13
	−1	0.51 ± .28	0.28
	1.4	0.27 ± .38	0.26
	4.1	0.44 ± .38	0.21
	5.3	0.29 ± .27	0.11
	Total Mean	0.40	0.20
2	−2.1	0.52 ± .24	0.74
	1.9	1.0 ± .56	1.00
	5.9	0.58 ± .34	0.28
	Total Mean	0.70	0.67
3	−1.8	0.59 ± .44	0.65
	3.6	0.70 ± .27	0.58
	4	0.97 ± .34	1.00
	Total Mean	0.75	0.75