In spectral Doppler, the X-axis represents what parameter?

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Multiple Choice

In spectral Doppler, the X-axis represents what parameter?

Explanation:
The X-axis represents time. In a spectral Doppler display, velocity (from the Doppler frequency shift) is plotted on the vertical axis, while the horizontal axis shows the progression of time during the recording. This setup lets you see how flow velocity changes throughout the cardiac cycle (peak systolic velocity, diastolic velocity, etc.). The actual velocity values are on the vertical axis, not the horizontal, and the horizontal axis is used to track changes over time.

The X-axis represents time. In a spectral Doppler display, velocity (from the Doppler frequency shift) is plotted on the vertical axis, while the horizontal axis shows the progression of time during the recording. This setup lets you see how flow velocity changes throughout the cardiac cycle (peak systolic velocity, diastolic velocity, etc.). The actual velocity values are on the vertical axis, not the horizontal, and the horizontal axis is used to track changes over time.

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