Microbubble oscillation in tubes with diameters of 12, 25, and 195 microns

Charles F. Caskey, Dustin E. Kruse, Paul A. Dayton, Tyler K. Kitano, Katherine W. Ferrara

Research output: Contribution to journalArticlepeer-review

75 Scopus citations


Ultrasound contrast agents are often used to measure flow rate in the microvasculature; however, the oscillation of these agents in capillary-sized tubes has not been directly observed. Here, oscillations of microbubbles are examined in microvessel phantoms with diameters similar to those of capillaries. High-speed camera images demonstrate the effects of ultrasonic pressure and tube diameter and length on microbubble expansion and fragmentation occurrence. Microbubble displacement due to radiation force is also demonstrated in a phantom microvessel.

Original languageEnglish (US)
Article number033902
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Issue number3
StatePublished - 2006

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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