Lower Extremity Artery Duplex Imaging Flashcards
(10 cards)
1
Q
LEA Duplex Imaging indications (4)
A
- evaluate symptomatic patients for stenosis
- possibly evaluate asymptomatic patients for disease
- absent pulses, suspicion of aneurysm
- follow up
2
Q
stenosis
if encountered, document the presence of ___ and associated ___ changes
A
document the presence of plaque and associated flow changes
3
Q
stenosis
≥ 2:1 velocity ratio increase = ___ diameter reduction
A
> 50% diameter reduction
4
Q
≥ 4:1 velocity ratio increase = ___diameter reduction
A
> 75% diameter reduction
5
Q
> ____cm/sec = ≥ 75% diameter reduction
A
> 400cm/sec
6
Q
peripheral artery aneurysm
assess for the presence of ___
A
intraluminal thrombus
7
Q
peripheral artery aneurysm
more likely to have an ___ at another location
A
aneurysm
8
Q
peripheral artery aneurysm
___ is the most likely complication
A
embolization
9
Q
inflow collaterals suggest ___
A
proximal severe stenosis or occlusion
10
Q
transducer used for LEA Duplex Imaging
A
linear (4-10MHz)
