Which statement best describes dynamic receive focusing?

Which statement best describes dynamic receive focusing?

• A. It is performed automatically and is not controlled by the sonographer.
• B. It is performed manually.
• C. It is not used in practice.
• D. It only affects transmit focusing.

Answer: (A)

Dynamic receive focusing means the ultrasound system automatically adjusts how it listens to echoes after they return, using depth-dependent timing delays across the array elements to focus at different depths. As the depth changes, the beamformer recalibrates these delays so echoes from a given point are aligned, keeping the beam narrow and the lateral resolution sharp throughout the image. This focusing happens automatically during reception, so the sonographer doesn’t manually steer or change the receive focus for each depth. It’s a standard part of how images are formed in modern machines and is distinct from transmit focusing, which shapes the initial wavefront before it’s sent into the body.

Dynamic receive focusing means the ultrasound system automatically adjusts how it listens to echoes after they return, using depth-dependent timing delays across the array elements to focus at different depths. As the depth changes, the beamformer recalibrates these delays so echoes from a given point are aligned, keeping the beam narrow and the lateral resolution sharp throughout the image. This focusing happens automatically during reception, so the sonographer doesn’t manually steer or change the receive focus for each depth. It’s a standard part of how images are formed in modern machines and is distinct from transmit focusing, which shapes the initial wavefront before it’s sent into the body.