Mark S. Humayun,Xiaochen Xu,Qifa Zhou,K. Kirk Shung,Hossein Ameri,Gerald Chader
申请号：
US12102293
公开号：
US08684935B2
申请日:
2008.04.14
申请国别(地区):
US
年份:
2014
代理人:
摘要：
Systems and methods are disclosed providing for the use of ultrasound energy to measure blood flow within blood vessels by Doppler velocity measurement. Directional high-frequency pulsed-wave Doppler measurements can be made with a suitable ultrasonic needle transducers for in vivo measuring of blood flow. A needle probe can include a ultrasonic material such as PMN-PT. Such blood flow measurements can be made in any part of the body, e.g., in the central retinal vein and branch retinal veins.
