|
|
|
|
|
|
|
|
|
Angiographic
Criteria for Stenosis:
|
|
(considered
as gold standard)
|
|
|
|
diameter at site of greatest narrowing
|
|
|
1 -
------------------------------------------------------ x 100%
|
|
|
diameter at site beyond visible
plaque
|
|
|
|
NASCET
criteria in: Stroke 22:711-720, 1991
|
|