Doppler waveforms
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Doppler waveforms are often misinterpreted and/or overlooked. They can provide great deal of information if carefully understood.
Radiographic features
Ultrasound
Doppler
The three basic arterial waveforms are 1-2:
-
triphasic: triphasic waveform
- forward flow in systole
- reverse flow in late systole / early diastole
- forward flow in late diastole
-
biphasic: biphasic waveform
- forward flow in systole
- reverse flow in diastole
-
monophasic: monophasic waveform - single phase with slow (dampened flow) acceleration/deceleration
- high velocity
- low velocity
Triphasic flow is considered normal, and monophasic flow is considered abnormal. Most authors consider biphasic flow abnormal, although some authors classify it as a normal waveform 2.
-<p><strong>Doppler waveforms </strong>are often misinterpreted and/or overlooked. They can provide great deal of information if carefully understood.</p><h4>Radiographic features</h4><h5>Ultrasound</h5><h6>Doppler</h6><p>The three basic waveforms are <sup>1-2</sup>:</p><ul>- +<p><strong>Doppler waveforms </strong>are often misinterpreted and/or overlooked. They can provide great deal of information if carefully understood.</p><h4>Radiographic features</h4><h5>Ultrasound</h5><h6>Doppler</h6><p>The three basic arterial waveforms are <sup>1-2</sup>:</p><ul>
-<strong>monophasic</strong>: <a href="/articles/monophasic-waveform">monophasic waveform</a> - single phase with slow (<a title="dampened flow" href="/articles/dampened-flow">dampened flow</a>) acceleration/deceleration<ul>- +<strong>monophasic</strong>: <a href="/articles/monophasic-waveform">monophasic waveform</a> - single phase with slow (<a href="/articles/dampened-flow">dampened flow</a>) acceleration/deceleration<ul>
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