The depth of view is controlled by which party?

• A. The patient
• B. The radiologist
• C. The manufacturer
• D. The sonographer

Answer: (D)

Depth of view in ultrasound refers to how deep the image field extends from the transducer, and the setting is controlled by the operator on the ultrasound console. The sonographer adjusts this to fit the anatomy being imaged—shallow depths for superficial structures to maximize detail and frame rate, or deeper depths to visualize organs farther inside the body. This choice directly influences image quality and temporal resolution: deeper imaging takes longer for echoes to return, which can lower the frame rate, while shallower imaging improves frame rate. The patient cannot adjust this during the scan, and while the equipment provides the control, it is the sonographer who typically makes these adjustments in real time.