If depth of view increases, PRF tends to ______.

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Multiple Choice

If depth of view increases, PRF tends to ______.

Explanation:
When you view deeper, echoes have a longer round-trip time to return from the deepest point. To keep each echo tied to its originating pulse and avoid overlapping echoes from different pulses (range ambiguity), the system must wait longer between pulses. That means the pulse repetition frequency is lowered as depth increases. In other words, PRF is inversely related to imaging depth, with deeper views requiring a decrease in PRF. So PRF tends to decrease.

When you view deeper, echoes have a longer round-trip time to return from the deepest point. To keep each echo tied to its originating pulse and avoid overlapping echoes from different pulses (range ambiguity), the system must wait longer between pulses. That means the pulse repetition frequency is lowered as depth increases. In other words, PRF is inversely related to imaging depth, with deeper views requiring a decrease in PRF. So PRF tends to decrease.

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