Prf scale ultrasound

1. What is the PRF scale ultrasound?
2. What does high PRF mean?
3. How do you measure PRF?
4. What is the normal PRF range of real time imaging?

What is the PRF scale ultrasound?

PRF is the Doppler sampling frequency of the transducer and is reported in kilo Hertz (KHz). The frequency with which these pulses are emitted determines the maximum Doppler shifts obtainable. The maximum Doppler shift frequency that can be sampled without aliasing is PRF/2, called the Nyquist limit [14].

What does high PRF mean?

Low-PRF radars are designed to be unambiguous in range, but are highly ambiguous in Doppler. High-PRF radars are, conversely unambiguous in Doppler but highly ambiguous in range. Medium-PRF radars have a moderate degree of ambiguity (say five times) in both range and Doppler and give better overall performance.

How do you measure PRF?

PRT is also equal to the sum, PRT = PW+RT. PRF = pulse repetition frequency. PRF has units of time^-1 and is commonly expressed in Hz (1 Hz = 1/s) or as pulses per second (pps). PRF is the number of pulses transmitted per second and is equal to the inverse of PRT.

What is the normal PRF range of real time imaging?

-The PRF in real time imaging typically ranges from 4 to 15 kHz.