How can the spectral Doppler mirroring seen in this image be eliminated?
A.
Decrease wall filter.
B.
Decrease Doppler gain.
C.
Increase dynamic range.
D.
Increase pulse repetition frequency (PRF).
The Answer Is:
B
This question includes an explanation.
Explanation:
Spectral Doppler mirroring, also known as crosstalk, occurs when the Doppler signal appears on both sides of the baseline. This can be caused by excessively high Doppler gain, which amplifies the signal and creates artificial mirror images. Decreasing the Doppler gain reduces the signal amplitude, thereby minimizing the mirroring artifact.
ARDMS Sonography Principles and Instrumentation guidelines
Hoskins, P. R., Thrush, A., Martin, K., & Whittingham, T. A. (2010). Diagnostic Ultrasound: Physics and Equipment.
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