Ultra-high-speed digital video images of vibrations of an ultrasonic tip and phacoemulsification
2008; Lippincott Williams & Wilkins; Volume: 34; Issue: 6 Linguagem: Inglês
10.1016/j.jcrs.2008.02.020
ISSN1873-4502
AutoresTeruyuki Miyoshi, Hironori Yoshida,
Tópico(s)Ocular Infections and Treatments
ResumoTo visually compare ultrasonic tip vibrations during continuous-mode ultrasound (US), micropulse-mode US, and phacoemulsification using ultra-high-speed digital video imaging.Miyoshi Eye Center, Fukuyama, Hiroshima, Japan.An ultra-high-speed digital video camera was used to record different modes of ultrasonic oscillation. Samples used in the test chamber during phacoemulsification included a pig lens, a human lens nuclear fragment, and a piece of chestnut.The ultra-high-speed digital video camera clearly captured vibrations of the ultrasonic tip and allowed successful visualization of cavitation during continuous-mode and micropulse-mode US, chattering motion during continuous mode, and hyper-followability during micropulse mode.The study visually showed that continuous-mode US produces chattering motion, while micropulse-mode US produces hyper-followability.
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