In B-mode, the y-axis represents what?

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Multiple Choice

In B-mode, the y-axis represents what?

Explanation:
Depth. In B-mode imaging, each vertical position on the screen corresponds to increasing depth from the transducer, while the horizontal axis represents lateral position across the field. The brightness at each point encodes the strength (amplitude) of the reflected echo, not the axis value. Time of flight is used to determine depth, but what you see on the vertical axis is depth itself, not time or amplitude.

Depth. In B-mode imaging, each vertical position on the screen corresponds to increasing depth from the transducer, while the horizontal axis represents lateral position across the field. The brightness at each point encodes the strength (amplitude) of the reflected echo, not the axis value. Time of flight is used to determine depth, but what you see on the vertical axis is depth itself, not time or amplitude.

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