Doppler waveforms
Updates to Article Attributes
Body
was changed:
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 waveforms are1,2:
-
triphasic
- forward flow in systole
-
biphasicreverse flow in late systole / early diastole - forward flow in late diastole
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biphasic
- forward flow in systole
- reverse flow in diastole
-
monophasic: single phase with slow 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><p>The three basic waveforms are:</p><ul>-<li>triphasic</li>-<li>biphasic</li>-<li>monophasic<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 waveforms are <sup>1,2</sup>:</p><ul>
- +<li>
- +<strong>triphasic</strong><ul>
- +<li>forward flow in systole</li>
- +<li>reverse flow in late systole / early diastole</li>
- +<li>forward flow in late diastole</li>
- +</ul>
- +</li>
- +<li>
- +<strong>biphasic</strong><ul>
- +<li>forward flow in systole</li>
- +<li>reverse flow in diastole</li>
- +</ul>
- +</li>
- +<li>
- +<strong>monophasic</strong>: single phase with slow acceleration/deceleration<ul>
-</ul>- +</ul><p>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 <sup>2</sup>. </p>
References changed:
- 2. Scissons R, Comerota A. Confusion of peripheral arterial Doppler waveform terminology. Journal of Diagnostic Medical Sonography. 2009;24 (4): 185-194. <a href="https://doi.org/10.1177/8756479309336216">doi:10.1177/8756479309336216</a>
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