Focusing also occurs during ______.

Focusing also occurs during ______.

• A. Transmission
• B. Reception
• C. Processing
• D. Display

Answer: (B)

Focusing in this context comes from how the system handles the echoes after they’re received. With a phased-array transducer, echoes from a point in the body reach each element at different times. By applying the appropriate time delays to the signals from each element and then summing them, the system aligns the echoes from that point. This receive focusing concentrates energy at a specific depth and location, improving the image sharpness where you want to see detail. Transmission can be focused too, but the statement emphasizes that focusing also happens during reception, which is the key idea behind beamforming on the receive side. Processing and display handle post-beamforming steps, while the actual focusing action is the receive-side beamforming.

Focusing in this context comes from how the system handles the echoes after they’re received. With a phased-array transducer, echoes from a point in the body reach each element at different times. By applying the appropriate time delays to the signals from each element and then summing them, the system aligns the echoes from that point. This receive focusing concentrates energy at a specific depth and location, improving the image sharpness where you want to see detail. Transmission can be focused too, but the statement emphasizes that focusing also happens during reception, which is the key idea behind beamforming on the receive side. Processing and display handle post-beamforming steps, while the actual focusing action is the receive-side beamforming.