The comparison of bleeding rate before and after insonation (g/s, –x±s).

Data are the means±standard deviations. MEUS means microbubble-enhanced (therapeutic) ultrasound; TUS means therapeutic ultrasound only without microbubbles; MB means no pulses were transmitted by the transducer only injected microbubbles.
*P<0.05 indicates a significant difference between the MEUS groups before and after insonation; and +P<0.05 indicates a significant difference between the MEUS group and the controls.