Arterial Duplex Imaging

Question 1

> 2:1 velocity ratio increase =

Answer 1

> 50% diameter reduction

Question 2

> 4:1 velocity ratio increase =

Answer 2

> 75% diameter reduction

Question 3

Most likely complication for peripheral aneurysms

Answer 3

Embolization

Question 4

Definition of an Aneurysm

Answer 4

> 1 1/2 times the diameter of the adjacent ‘normal’ artery segment

Question 5

Most common location for aneurysm

Answer 5

Infrarenal

Question 6

How do you determine velocity ratio (stenosis)

Answer 6

Compare pre stenotic PSVto highest PSV in the stenosis

Question 7

Most common upper extremity aneurysm

Answer 7

Subclavian artery aneurysm, associated with distal embolization

Question 8

Ulnar artery aneurysm is secondary to

Answer 8

Hypothenar Hammer Syndrome

Question 9

Hypothenar hammer Syndrome

Answer 9

Repetitive blunt trauma to the superficial palmar arch of the ulnar artery

Can lead to aneurysm degeneration,formation of intraluminal thrombus, and subsequent embolization to digital arteries