Chart 1. US and UTMD conditions.

Group	US power	US irradiation time	SonoVue volume ratio
1	0.8w	40s	20%
2	0.8w	60s	20%
3	0.8w	80s	20%
4	1.0w	40s	20%
5	1.0w	60s	20%
6	1.0w	80s	20%
7	1.2w	40s	20%
8	1.2w	60s	20%
9	1.2w	80s	20%
10	No US
11	0.8w	40s	40%
12	0.8w	60s	40%
13	0.8w	80s	40%
14	1.0w	40s	40%
15	1.0w	60s	40%
16	1.0w	80s	40%
17	1.2w	40s	40%
18	1.2w	60s	40%
19	1.2w	80s	40%
20		RhB solution, no US