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Jona Profile picture
@JonahSerranoMD
Feb 18, 2023 • 6 tweets • 5 min read • Read on X
♂ 50 y. With pulsatile femoral mass. history of femoral puncture 💉.

1/4
 #vasculardoppler #ultrasound #MedEd #FOAMed #POCUS #radiology @ButterflyNetInc
2/4
 Dx?
3/4 Ying-yang , or pepsi sign described in both true and false aneurysms.

On Doppler ultrasound, the yin-yang sign indicates bidirectional flow due to the swirling of blood within the true or false aneurysm. twitter.com/i/web/status/1… Image
4/4 Pseudoaneurysms are commonly seen after biopsy or surgical procedures, where blood dissects into the tissues around an injured vessel and forms a perfused sac that communicates with the arterial lumen. Image
Source :

radiopaedia.org/articles/yin-y… Image
@JMMR83 @NuvancePOCUS @ABCDEcografia @echo_periop @POCUSpeek @trigeminy_henry @TaotePOCUS @ButterflyNetInc

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More from @JonahSerranoMD

Jona Profile picture
Feb 9, 2023
A straightforward, hands-on approach to Portal Vein Pulsed Wave Doppler.

Physiologic and pathologic waveforms

🧵0/7

#doppler #PWD #echofirst #POCUS #VexUs @ButterflyNetInc
1/ 7 PHYSIOLOGIC

Physiologic flow should be always antegrade and hepatopetal ( towards trasducer). Could be monophasic or gently ondulating,

In doppler it should be red (get the smallest angle posible).
To Remember:

Fugal: Away

Petal: Toward

Normal velocity: 16-40 cms
Read 12 tweets
Jona Profile picture
Feb 6, 2023
Super easy explain of physiologic Hepatic Pulsed Wave Doppler waveform.

🧵1/
#doppler #radiology #pocus #vexus #hemodinamics #butterflyiq @ButterflyNetInc @hepocus
2/
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).
3/
Most of the flow in the hepatic veins is hepatofugal (towards heart).
Read 11 tweets

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