Venous Disease state & Imaging Flashcards
venous anatomy includes superficial veins, deep veins, and ______.
perforator veins
compared to arteries, veins have thinner walls, larger lumens, valves, and are _________.
more compliant
Virchow’s triad is referring to
the formation of thrombus
virchow’s triad includes vein damage, _____, and _______.
- venous stasis
- hypercoagulability
arterial thrombus has _____ flow and venous thrombus has _____ flow.
- high shear
- low shear
May Thurner syndrome occurs when there is a compression of the ______ vien on the ______ artery.
-left illiac
-right illiac
VTE is associated with a _____ unpredicatable population compared to PAD.
more
Virchow’s triad: venous stasis, vein damage, and hypercoagulabilty increase the risk for ____.
DVT
T or F: May-thurner syndrome is often misdiagnosed, and is common in younger women
True
T or F: up to half of the DVT patients reach PTS
True
How old does DVT have to be to be considered chronic?
> 28 days
What is the most common symptom of May-Thurner syndrome?
left leg swelling
PE causes death in what percentage of diagnoses?
30%
Virchow’s triiad does not access the following factors:
lifestyle habits
Venous lesions occur due to two main causes:
- non-thrombotic lesions
- venous thromboembolism
Virchow’s triangle can be used to determine:
the presence of thrombus
DVT is the primary disease that fals under:
VTE
What is a result of damage from chronic DVT:
PTS
duplex ultrasound, computed temgraphy (CTV), magnetic resonance venography (MRV) are all part of:
diagnostic imaging
venography and Intravascular Ultrasound (IVUS) are part of:
Intraprocedural imaging
T or F: If the vein can be compressed using duplex ultrasound, there is no DVT present
True
What ultrasound can differientate acute from chronic disease?
CTV
Often used when duplex ultrasound is inconclusive. Commonly used to view adominal/pelvic area in 3D image and has the ability to obtain blood flow information:
MRV
Similar to arterial angioplasty. X-ray that uses contrast to help place devices and guide treatment:
Venography
Used to access presence and extent of disease, examine lesion geometry and morphology, and position guidewire and stent:
IVUS
Viewing on IVUS, when placing a stent, you take the avg min and max diameters and oversize by:
1-2 mm
Imaging falls under 2 main categories:
- diagnostic
- intraprocedural
______ is particulary useful to evaluate lesion severity and for accurate stent placement.
IVUS
Describe what may0thurner syndrome looks like on a MRV image
vein is compressed and the outflow in obstructed blood flow is redistributed and collaterals are activated and/or formed
What is the main takeaway of the VIDIO trial?
IVUS is more effective at visualizing venous disease than venography
the Venovo™ Venous Stent System IFU recommends oversizing by how much?
1 – 3 mm
True or False: Venography is used for both diagnostic and intraprocedural imaging.
True
Which of the following is a negative aspect of venography?
High radiation
Which of the following is a positive aspect of IVUS?
All of the above
