Beam width parallel to the scan plane causes partial volume artifact.
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Q67: Artifacts can help and hinder proper interpretation
Q68: Aliasing is more common in color Doppler
Q69: Increasing the Doppler angle may eliminate aliasing.
Q70: Enhancement weakens the amplitude of structures distally.
Q71: Mirror image artifact is not a factor
Q73: The Nyquist limit is equal to the
Q74: Operating frequency reduction reduces the Doppler shift.
Q75: Refraction can cause shadowing.
Q76: Aliasing is caused by over-sampling of the
Q77: Cross-talk can occur when receiver gain is
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