. Author manuscript; available in PMC: 2019 Jun 10.

Published in final edited form as: J Ultrasound Med. 2017 Jan 10;36(3):523–530. doi: 10.7863/ultra.16.04064

Table 3.

Contrast-Enhanced Sonographic Quantitative Perfusion Parameter Medians by Histopathologic Cohort

Parameter	Cohort 1 (n = 11)	Cohort 2 (n = 9)	Cohort 3 (n = 11)	P^a
Peak enhancement, a.u.	61.8	117.0	119.6	.34
Wash-in AUC, a.u.	128.0	169.5	130.1	.31
Rise time, s	2.9	1.8	1.9	.07
Mean transit time, s	12.1	11.5	8.9	.09
Time to peak, s	3.7	2.6	2.8	.07
Wash-in rate, a.u.	29.8	71.0	94.0	.20
Wash-in perfusion index, a.u.	40.4	77.1	75.5	.28
Wash-out AUC, a.u.	364.4	512.1	266.2	.09
Wash-in + wash-out AUC, a.u.	513.7	681.5	374.1	.13
Fall time, s	8.7	4.5	4.2	.07
Wash-out rate, a.u.	7.2	16.8	30.4	.16

AUC indicates area under the curve; and a.u., arbitrary units.

Kruskal-Wallis test.