What is one trade-off of using a higher transmitted frequency?

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Multiple Choice

What is one trade-off of using a higher transmitted frequency?

Explanation:
Using a higher transmitted frequency gives you a bigger Doppler shift for the same blood or tissue velocity, so Doppler sensitivity is improved. That means small velocities are easier to detect and velocity estimation becomes more precise. But higher frequency also attenuates more as it travels through tissue. Attenuation increases with frequency, so the signal weakens more quickly with depth. That reduces how deep you can effectively image. So the trade-off is: better Doppler sensitivity and higher resolution near the surface, at the cost of reduced penetration to deeper structures.

Using a higher transmitted frequency gives you a bigger Doppler shift for the same blood or tissue velocity, so Doppler sensitivity is improved. That means small velocities are easier to detect and velocity estimation becomes more precise.

But higher frequency also attenuates more as it travels through tissue. Attenuation increases with frequency, so the signal weakens more quickly with depth. That reduces how deep you can effectively image.

So the trade-off is: better Doppler sensitivity and higher resolution near the surface, at the cost of reduced penetration to deeper structures.

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