TABLE 2.

Performance of Prior Baseline Method for Each Patient

	Exist early baseline (%)	Used early baseline (%)	Mean baseline image no.
Patient 1	72	70	1.23
Patient 2	74	64	1.25
Patient 3	71	63	1.29
Patient 4	72	60	1.15
Patient 5	79	48	2.23

Columns indicate fraction of total sonications where a prior baseline existed, fraction of total sonications used in calculations (by meeting prior baseline matching criteria, where maximum value would be equal to exist early baseline), and the average baseline number used (where 1 indicates the earliest, or first baseline acquired, 2 is the second baseline, etc.). Most were able to utilize the earliest available baseline.