Gray-Weale et al developed a classification scheme for carotid artery atherosclerotic plaque based on ultrasonographic characteristics.
Parameters:
(1) plaque type
(2) plaque surface
Echolucent Plaque |
Echogenic Plaque |
Type |
almost entirely |
none, or thin cap on luminal surface |
I |
most of plaque |
small, scattered foci |
II |
small, scattered foci |
most of plaque |
III |
none |
entirely (homogenous) |
IV |
Plaque surface:
(1) smooth
(2) irregular
(3) ulcerated (surface crater >= 2 mm in diameter)
Symptomatic patients are more likely to have:
(1) Type I or II plaque
(2) plaque with an ulcerated surface
Specialty: Neurology
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