Chapter 6 Aorta Iliac Artery Duplex Imaging

Question 1

What is the aneurysm rule?

Aka what size of dilation is considered an aneurysm

Answer 1

1 1/2 times the diameter of the adjacent “normal” artery segment.

Question 2

Supra-renal aneurysms are very common.

True or False

Answer 2

FALSE.

They are very uncommon.

Question 3

an AAA that is in the shape of a spindle is called?

Answer 3

Fusiform

MOST COMMON TYPE

Question 4

An AAA that is in the shape of a bubble is called

Answer 4

Saccular

Think of a round sac is the shape of a bubble.

Question 5

If you see a delayed systolic acceleration time, where might you think there is a stenosis?

Proximal to this area or distal to this area?+

Answer 5

Proximal

Question 6

It is very important to document the post stenotic turbulence and consider the CFA waveform as well.

What would the CFA waveform look like in the case of an aorto-iliac occlusion?

JUST KNOW

Answer 6

True

The CFA will likely be monophasic without a systolic flow reversal noting that there is proximal disease.

Question 7

When you see a CFA with a monophasic waveform, where else should you look and what can this indicate?

Answer 7

This indicates a stenosis proximal to the CFA such as iliacs.

It makes sense. There is something dampening the waveform and its clearly because there is something wrong proximal to this area.

Question 8

HINT HINT:

Common iliac artery occlusions will often result in retrograde flow in the internal iliac. Why is this

Answer 8

The flow reverses in order to supply the external iliac artery.

Question 9

If there is an external iliac artery occlusion, what types of vessels may form as a result to this and where would they be located?

Think about where that vessel is located.

Answer 9

Collaterals at the groin

Question 10

If a patient complains of claudication (pain in hips thighs or calf) what should be the firstplace we think to look?

Answer 10

Aortic/iliac