Jona Profile picture
Feb 6 11 tweets 6 min read
Super easy explain of physiologic Hepatic Pulsed Wave Doppler waveform.

🧵1/
#doppler #radiology #pocus #vexus #hemodinamics #butterflyiq @ButterflyNetInc @hepocus
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After appropriate technique to get PWD of suprahepatic Veins.
Look for the 4 classic waves of the tetraphasic spectrum of the hepatic veins (a,S,v,D).
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Most of the flow in the hepatic veins is hepatofugal (towards heart).
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The spectrum is phasic and predominantly anterograde (towards heart).
5/ Waves Meaning.

a: Atrial contraction. It's retrograde.
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S: Systole causes a suction effect in the right atrium. Most anterograde wave of the cycle.
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v: Peak represents the opening of the tricuspid valve and the transition from systole to diastole.
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D: Rapid ventricular filling.
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Now we can link it to the EKG trace.
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RT:)
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