Is the Pulse Repetition Frequency (PRF) adjustable in sonography?

The Pulse Repetition Frequency (PRF) is indeed adjustable in sonography systems. This parameter defines the number of pulses emitted per second and directly influences image resolution and depth of penetration. By adjusting the PRF, sonographers can optimize the system for specific imaging needs.

When a higher PRF is selected, the system can acquire data more rapidly, which is beneficial for imaging superficial structures with high temporal resolution. Conversely, a lower PRF allows for deeper penetration of sound waves, as it increases the time between pulses, giving the sound waves more time to return from deeper tissues.

This adjustability allows sonographers to tailor settings based on the clinical situation, maximizing both image quality and diagnostic effectiveness. Thus, the correct answer reflects the flexibility within modern sonography systems to enhance their functionality according to the imaging context.