Which parameter controls the depth of imaging on the display?

Which parameter controls the depth of imaging on the display?

• A. TGC
• B. Overall gain
• C. Depth
• D. Frequency

Answer: (C)

Depth is the setting that determines how far into the tissue the image extends. It defines the display’s maximum imaging range by setting the time window over which echoes are shown. When you increase depth, the system listens longer for echoes, allowing deeper structures to appear but usually reducing frame rate due to more data to process. Decreasing depth tightens the window to shallower structures and improves frame rate. Other controls don’t change how deep the image goes: TGC adjusts brightness at different depths, overall gain changes the brightness of the whole image, and frequency mainly affects penetration and resolution rather than the display depth window.

Depth is the setting that determines how far into the tissue the image extends. It defines the display’s maximum imaging range by setting the time window over which echoes are shown. When you increase depth, the system listens longer for echoes, allowing deeper structures to appear but usually reducing frame rate due to more data to process. Decreasing depth tightens the window to shallower structures and improves frame rate. Other controls don’t change how deep the image goes: TGC adjusts brightness at different depths, overall gain changes the brightness of the whole image, and frequency mainly affects penetration and resolution rather than the display depth window.