Garbani Chap 5 Flashcards
Testing the Abdominal Aorta
During which approach is the abdominal aorta under intestines?
anterior approach
During which approach is the abdominal aorta behind the spine?
posterior approach
A new endovascular technique to repair the abdominal aortic aneurysm is known as what?
EVAR
Landmarks for prox ab aorta, cite of measurements
celiac trunk and SMA
What are qualifications for duplex ultrasound concerning the ab Ao
- history of aneurysm repair
- suspected/documented aneurysm
- claudication with etiology of aortic disease
- other (trauma)
After a duplex ultrasound of a repaired aneurysm and there no expansion when is the follow-up appt?
3-6 months for 1st year
yearly after
After a duplex ultrasound of a repaired aneurysm and there is an expansion…
what happens next?
- review procedure
- look at source of endoleak
( if their is an endograft) - if aneurysm sac id open eval/repair
Follow up accordingly
Term used for explosion, dilation, or distention
ectasia
After a duplex ultrasound of a suspected or documented aneurysm and NO evidence of ectasia or aneurism when is the follow-up appt ?
No appt
unless risk factors involved
After a duplex ultrasound and ectasia or aneurysm is noted…..
What’s the next step?
Evaluate….
- location
- size
- appearance
After a duplex ultrasound and ectasia or aneurysm is noted…..
What’s the next step?
Evaluate….
- location
- size
- appearance
When is follow up?
depends on protocol and severity
After duplex ultrasound of….
Documentation of claudication and etiology of aortic disease……
What needs to be evaluated?
- location
- extent
- appearance
After duplex ultrasound of….
Documentation of claudication and etiology of aortic disease and
after evaluating………
- location
- extent
- appearance
What happens next?
- follow-up
- correlation
- and/or intervention
After duplex ultrasound of “other” (trauma)
and after evaluation patient history
- penetrating wound
- surgery
Evaluate for……
- ectasia
- rupture
- dissection
- thrombosis
- arteriovenous fistula
Communication between and artery and vein
arteriovenous fistula
A permanent abnormal passageway between 2 organs
fistula
When is it ideal in the ab Ao to use a panoramic feature or at least measure the longest field of view possible.
Why?
length of aneurysm in long
- to see entire length an aneurysm
- to see if other arteries may be compromised
stationary blood clot along wall of vessel, usually causes vascular obstruction
thrombus
With AAA in trans what needs to be measured?
diameter of aneurysm and also the remaining lumen
Distension of lumen by aneurysm may induce low flow and turbulence possibly increasing……
risk of thrombosis
It has a “seagull” appearance
Celiac/Coeliac Axis
It has a “seagull” appearance with the hepatic artery going towards the liver and the splenic artery to the left.
False dilation created from flow escaping from an artery and contained within surrounding tissue.
Pseudoaneurysm
Where does a dissection usually occur?
between intima and media layers of an artery
What is the difference between pseudoaneurysm and aneurysm?
pseudoaneurysm should not have a vessel wall and should not show signs of arterial layers
Describe Doppler waveform of an aneurysm
medium-to-high resistance flow pattern in lumen
Describe Doppler waveform of an pseudoaneurysm
To-and-fro flow at neck
