When imaging shallow, PRF is ______.

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Multiple Choice

When imaging shallow, PRF is ______.

Explanation:
PRF is the rate at which ultrasound pulses are emitted. The deepest echo that must be received sets the minimum time between pulses to avoid range ambiguity, so the deeper you image, the lower the PRF. At shallow depths, echoes return quickly, allowing the system to fire pulses more frequently without overlap. That means PRF is higher for shallow imaging. This higher PRF improves frame rate and temporal sampling at those depths.

PRF is the rate at which ultrasound pulses are emitted. The deepest echo that must be received sets the minimum time between pulses to avoid range ambiguity, so the deeper you image, the lower the PRF. At shallow depths, echoes return quickly, allowing the system to fire pulses more frequently without overlap. That means PRF is higher for shallow imaging. This higher PRF improves frame rate and temporal sampling at those depths.

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