What is the time from the beginning of one voltage pulse to the start of another?

What is the time from the beginning of one voltage pulse to the start of another?

• A. PRP
• B. PRF
• C. Real Time Imaging
• D. Range Ambiguity

Answer: (A)

The time from the start of one voltage pulse to the start of the next is called the pulse repetition period. It’s the interval between successive ultrasound pulses and is typically measured in microseconds. PRP sets how long the system listens for echoes before firing again; a longer PRP allows more time to receive echoes from deeper structures, but it reduces the frame rate because fewer pulses are sent per second. The PRF, or pulse repetition frequency, is the reciprocal of PRP (PRF = 1 / PRP), so a higher PRF means a shorter PRP. The other options describe related concepts but not the interval itself: Real Time Imaging refers to how quickly images are produced, and range ambiguity describes misassignment of depth when echoes overlap due to high PRF.

The time from the start of one voltage pulse to the start of the next is called the pulse repetition period. It’s the interval between successive ultrasound pulses and is typically measured in microseconds. PRP sets how long the system listens for echoes before firing again; a longer PRP allows more time to receive echoes from deeper structures, but it reduces the frame rate because fewer pulses are sent per second. The PRF, or pulse repetition frequency, is the reciprocal of PRP (PRF = 1 / PRP), so a higher PRF means a shorter PRP. The other options describe related concepts but not the interval itself: Real Time Imaging refers to how quickly images are produced, and range ambiguity describes misassignment of depth when echoes overlap due to high PRF.