Dynamic receive focusing is performed ______.

Dynamic receive focusing is performed ______.

• A. Automatically
• B. Manually
• C. Randomly
• D. Not at all

Answer: (A)

Dynamic receive focusing is achieved by the ultrasound system automatically adjusting the receive beam’s focal point as echoes return from different depths. The beamformer applies depth-dependent time delays (phase shifts) to each element in the array during reception, so the focus moves with depth without the operator having to intervene. This automatic adjustment keeps lateral resolution sharp across the entire image depth. Manual, random, or no focusing would not provide the depth-dependent adjustment the system performs automatically, which is why automatic is the correct description.

Dynamic receive focusing is achieved by the ultrasound system automatically adjusting the receive beam’s focal point as echoes return from different depths. The beamformer applies depth-dependent time delays (phase shifts) to each element in the array during reception, so the focus moves with depth without the operator having to intervene. This automatic adjustment keeps lateral resolution sharp across the entire image depth.

Manual, random, or no focusing would not provide the depth-dependent adjustment the system performs automatically, which is why automatic is the correct description.