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Table 1 The Total Plaque Risk Score (TPRS)

From: Plaque morphology detected with Duplex ultrasound before carotid angioplasty and stenting (CAS) is not a predictor of carotid artery in-stent restenosis, a case control study

Parameter

Score = 0

Score = 1

Score = 2

Score = 3

I)

Degree of stenosis

< 40% (NASCET)

≥ 40% (NASCET)

  

II)

Echogenicity

 

Low echogenicity or echolucency

Intermediate echogenicity

Hyper-echogenicity

III)

Texture

Homogeneous

Heterogeneous

  

IV)

Surface

Smooth

Irregular