Clinical Study
Urgent Carotid Surgery: Is It Still out of Debate?
Table 2
Nicolaides plaque classification.
| Plaque | Morphologic characterization |
| Type 1 | Uniformly echolucent plaque | Type 2 | Predominantly echolucent plaques with less than 50% echogenic areas | Type 3 | Predominantly echogenic plaques with less than 50% echolucent areas | Type 4 | Uniformly echogenic plaques | Type 5 | Could not be classified (heavy calcification and acoustic shadows) |
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