Which statement describes the relationship between PRF and depth of view?

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Sharpen your skills for the Davies Publishing SPI Test with targeted flashcards and multiple-choice questions, complete with hints and clarifications. Prepare thoroughly for success!

Multiple Choice

Which statement describes the relationship between PRF and depth of view?

Explanation:
Pulse Repetition Frequency is how many ultrasound pulses the machine can emit per second, and it’s limited by how long echoes take to return from the deepest point you’re imaging. When you look deeper, the sound must travel farther and back, which takes more time. To avoid missing the deepest echoes and to prevent range ambiguity, the system must slow down the pulse rate. That means the maximum PRF decreases as depth increases, and conversely, PRF is higher when imaging shallower depths. So PRF and depth of view are inversely related.

Pulse Repetition Frequency is how many ultrasound pulses the machine can emit per second, and it’s limited by how long echoes take to return from the deepest point you’re imaging. When you look deeper, the sound must travel farther and back, which takes more time. To avoid missing the deepest echoes and to prevent range ambiguity, the system must slow down the pulse rate. That means the maximum PRF decreases as depth increases, and conversely, PRF is higher when imaging shallower depths. So PRF and depth of view are inversely related.

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