Fig. 2 (abstract P42).
From: Abstracts from the International Society for Therapeutic Ultrasound Conference 2017
From images acquired, differences images at 1, 5 and 10 s after the start of the sonication (Pneg: 8MPa, PL: cotinuous wave) were obtained (a-c). The black circle denotes the sonicated region, as the darker dye is cleared from hydrogel, the lighter clearer gel surface is shown causing an increase in optical density