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

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Multiple Choice

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

Explanation:
In B-mode ultrasound, the image is built by plotting how strong echoes vary with depth along each ultrasound beam. The time it takes for echoes to return is converted into depth using the speed of sound in tissue, so echoes that come from deeper structures appear farther along the axis that represents depth. The brightness at each point then encodes the amplitude of the echo, while sweeping the beam across provides a second dimension for lateral position. So the axis in question represents depth into the body.

In B-mode ultrasound, the image is built by plotting how strong echoes vary with depth along each ultrasound beam. The time it takes for echoes to return is converted into depth using the speed of sound in tissue, so echoes that come from deeper structures appear farther along the axis that represents depth. The brightness at each point then encodes the amplitude of the echo, while sweeping the beam across provides a second dimension for lateral position. So the axis in question represents depth into the body.

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