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4 Comments

  • Marc Wojciechowski - 2 months ago

    Please read the 2020 concensus statement on interpretation of peripheral Doppler waveforms. It's monophasic. If you know the baseline and it never crosses it; it's monophasic. Yes it could by a waveform from a biphasic or triphasic artery that responds to vasodilation, but the waveform IS monphasic.

  • Brian - 6 years ago

    Lester,

    The machine used is very modern. The baseline on arterial waveforms plays tomato roles. It does show direction, however it also shows distal resistance. This waveform has a sharp upstroke, a rapid downstroke and a reversal component. Move the baseline and everyone would say simple tri-phasic. The baseline is below because the distal resistance has changed - post exercise which is a normal part of auto-regulation.

  • Lester Fernandez - 8 years ago

    It is a biphasic waveform showing a systolic & diastolic component. the absence of a negative component demonstrates the antiquity of the machine utilized.

  • Timothy McKeever - 9 years ago

    I conclude that the waveform is biphasic because of the the sharp rise to peak systolic as well as the sharp decrease to end diastolic with a dichotic notch. I do not believe that it is triphasic because you do not see a flow reversal below the baseline. This waveform is arterial which is the most defining morphology.

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