As flow disturbance increases, spectral broadening

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Prepare for the Registered Physician in Vascular Interpretation (RPVI) Exam with our comprehensive quiz. Engage with flashcards and multiple choice questions, complete with hints and explanations. Achieve excellence in your RPVI test preparation!

Multiple Choice

As flow disturbance increases, spectral broadening

Explanation:
Spectral broadening is due to a wider distribution of flow velocities within the sampled volume. When flow is laminar, velocities are relatively uniform, producing a narrow Doppler spectrum. As flow becomes disturbed or turbulent, many eddies and velocity directions occur, causing Doppler shifts over a broader range. The more disturbance, the wider the spectrum becomes, which is why spectral broadening increases with flow disturbance.

Spectral broadening is due to a wider distribution of flow velocities within the sampled volume. When flow is laminar, velocities are relatively uniform, producing a narrow Doppler spectrum. As flow becomes disturbed or turbulent, many eddies and velocity directions occur, causing Doppler shifts over a broader range. The more disturbance, the wider the spectrum becomes, which is why spectral broadening increases with flow disturbance.

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