超声探头振动和超声乳化的超高速数字视频图像。
Ultra-high-speed digital video images of vibrations of an ultrasonic tip and phacoemulsification.
作者信息
Miyoshi Teruyuki, Yoshida Hironori
机构信息
Miyoshi Eye Clinic, Fukuyama, Hiroshima, Japan.
出版信息
J Cataract Refract Surg. 2008 Jun;34(6):1024-8. doi: 10.1016/j.jcrs.2008.02.020.
PURPOSE
To visually compare ultrasonic tip vibrations during continuous-mode ultrasound (US), micropulse-mode US, and phacoemulsification using ultra-high-speed digital video imaging.
SETTING
Miyoshi Eye Center, Fukuyama, Hiroshima, Japan.
METHOD
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.
RESULTS
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.
CONCLUSION
The study visually showed that continuous-mode US produces chattering motion, while micropulse-mode US produces hyper-followability.
目的
使用超高速数字视频成像技术，直观比较连续模式超声（US）、微脉冲模式超声和超声乳化过程中超声探头的振动情况。
设置
日本广岛福山三好眼科中心。
方法
使用超高速数字视频摄像机记录不同的超声振荡模式。超声乳化过程中测试腔内使用的样本包括猪晶状体、人晶状体核碎片和一块栗子。
结果
超高速数字视频摄像机清晰地捕捉到了超声探头的振动，并成功可视化了连续模式和微脉冲模式超声下的空化现象、连续模式下的颤动运动以及微脉冲模式下的超跟随性。
结论
该研究直观显示，连续模式超声会产生颤动运动，而微脉冲模式超声会产生超跟随性。
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