Chapter 25- Venous Duplex Imaging Flashcards
What is the correct word for when were pushing down on the vein to make it “collapse”?
The wording is important !!
COAPTING the wall.
What is a “Baker’s Cyst”?
Baker’s cyst is a synovial cyst found behind the knee
If we see a femoral vein obstruction, what vessel might we expect to have become a collateral to help compensate?
Profunda
Thrombus in the GSV vein can require more aggressive treatment if near the junction.
True or False
True
In the image where we have the popliteal vein and artery, what are the vessels often seen anterior to that?
the SS and the gastrocnemium veins and arteries.
Thrombus is very common in the Anterior tibial veins
True or False
FALSE, very rare
These veins serve as a reservoir for the legs
Sural veins
Gastrocnemium veins drain into the popliteal
True or False
TRUE
Do soleal veins have arteries paired with them?
no
the IJV terminates into the
subclavian vein
The innominate vein is formed by what to vessels?
the IJV and subclavian vein
Why does a vessel get larger when it has a DVT?
Veins are elastic, when the lumen is obstructed and pressure increases, the vein dilates to compensate.
If we see continuous flow in the lower extremity, what abnormality should we be thinking?
proximal obstruction to the sample site
What is the Rouleaux Formation?
it is when we see sluggish flow moving in vein, such like a roll of coins in a stack.
rouleaux formation is often seen when there is a proximal obstruction.
True or Falsed
True
Because the upper extremities are closer to the heart, what kind of waveform is often seen
More phasic or pulsatile?
Anyting closer to heart is more pulsatile such as the innominate, subclavian, and sometimes axillary.
What is a quick trick to make the subclavian vein collpase if we cannot manually compress it?
pursing the lips and taking a quick breath in
If we see continous flow in the axillary vein, what should our first though be?
proximal obstruction
Which of the abdominal veins are pulsatile?
There is 3
IVC, Hepatic and Renal Veins
The____ renal vein is closer to the IVC, therefore more pusatile flow will be seen there.
Left or Right?
Right renal vein, the left renal vein is further
Which three abdominal veins have continous flow
Portal, Splenic, and mesenteric
What is chronic phlebosclerosis?
What is it commonly associated with?
The scarring of the vein often seen with a history of DVT.
Pulsatile flow is normal in the ___ extremities, but not in the ___ extremity.
pulsatile flow in the upper extremities not the lower extremities
Reflux/retrograde flow is normal in patients with phlebosclerosis
True or False?
True
If we see abnormal pulsatile flow in the lower extremity, what disorder should come to mind?
Venous hyptertension/right heart failure.
What is the syndrome in which there is an iliac compression?
May- Thurner syndrome
What are some common causes for May-Thurner syndrome?
Pregnancy, mass, enlarged lymph node, tumor , pregnancy
What is an IVC filter used for?
used to catch and hold thrombus emboli to prevent pulmonary embolus
Where are IVC filters usually located?
In the IVC below the level of the renal veins
occlusion of the hepatic veins is called?
Budd Chiari
What are some indications for “chronic” venous insufficiency?
leg heaviness/achiness, discomfrot, itching, burning, edema, varicosities, skin changes
A patient comes in with a sudden onsite of ascites, abdomen pain, and liver enlargement. what disorder does this sound like?
Budd-Chiari- occlusion or thrombus of hepatic veins
When doing a “insufficiency study”, we see no flow in the waveform during distal compression. Is this normal or abnormal?
Normal
When doing an insufficiency study, we see retrograde flow, what does this mean?
patient has incompetent valves not controlling the flow going through
In the superficial system, what is the criteria to determine “reflux”?
Retrograde flow more than 0.5 seconds
In the deep system, what is the criteria to determine “reflux”
Retrograde flow more than 1 second.
