Passive cavitation mapping for localization and tracking of bubble dynamics.
Current acoustic techniques for studying cavitation dynamics are only readily applicable to single-bubble activity, while optical methods can only be used in transparent media. However, multi-bubble cavitation often occurs in opaque media such as biological tissue. Here, the signals received passively by each of the 64 channels of a diagnostic ultrasound array are used to localize and separate emissions from several bubble clusters cavitating in agar gel, thereby providing a method of observing cavitation dynamics. The method has a high spatiotemporal resolution and is applicable to cavitation in opaque media.
Gyöngy
Miklós
M
Coussios
Constantin-C
CC
D000162:Acoustics; D000362:Agar; D005782:Gels; D008962:Models, Theoretical; D009038:Motion; D011312:Pressure; D013016:Sound; D013997:Time Factors; D014159:Transducers; D014463:Ultrasonography / Q000295:instrumentation
D005782:Gels; D000362:Agar