ECD

Question 1

ICA 50-69 % stenosis: PSV and ICA/CCA PSV ratios?

Answer 1

ICA PSV = 125-230 cm/s; ICA/CCA ratio = 2-4

Question 2

ICA 50-69 % stenosis: EDV criterion?

Answer 2

40-100 cm/s

Question 3

ICA 70-near occlusion: PSV + ICA/CCA PSV ratios?

Answer 3

PSV >230 cm/s

ICA/CCA ratio > 4

Question 4

ICA 70-near occlusion: EDV criterion?

Answer 4

> 100 cm/s

Question 5

when does stenosis ICA tend to become HDS?

Answer 5

60-80%. Corresponds to the tapering down of flow volume with the rapid increase in velocity.

Question 6

Zsolt Garami’s 80% ICA stenosis principle?

Answer 6

EDV > 140 cm/s.