Effect Of Diagnostic Ultrasound At Different Mechanical Indexes On Microbubbles

This study investigates the effects of different mechanical indexes (MI) of diagnostic ultrasound (US) on microbubbles in-vitro. ZHIFUXIAN microbubbles were obtained after being inserted into a cellulose tube and exposed to ultrasonic irradiation at different MIs. The US images were captured to analyze the changes in the microbubble concentration. The movement trends of the microbubbles at different MIs were monitored. We found that the microbubbles were not damaged at a low MI. Further, the microbubbles moved with increased MI, and were destroyed as the MI increased to a certain point. At MI<0.20, the microbubble movement rate increased over time. At MI>0.20, the microbubble movement rate increased over time, and some burst. We concluded that microbubble movements follow a certain law of motion at a low MI. Microbubbles are displaced at low MI, and they are distinctly destroyed at a high MI.