Development of the ultrasonic flowmeter. |
| |
Authors: | J P Woodcock |
| |
Institution: | Department of Medical Physics, University Hospital of Wales and the Welsh National School of Medicine, Heath Park, Cardiff CF4 4XN, UKWales |
| |
Abstract: | The ultrasonic flow-velocity meter for blood flow measurement has developed in two directions. The first type is the transit-time velocity meter, and the second, the Doppler-shift type. For clinical measurement the transcutaneous Doppler instrument is now in routine use and has largely superseded the transit-time type. Doppler-shift velocity meters are now available which measure blood velocity, volume flow, flow direction, flow profile and visualize the internal lumen of a blood vessel. |
| |
Keywords: | Ultrasonic Flowmeter Doppler-shift Range-gated Frequency-modulated Flow direction Coded pulses |
本文献已被 ScienceDirect 等数据库收录! |
|