Table 3 The value of carotid ultrasound parameters for identifying disease activity
Optimal cut-point | AUC | 95%CI | Sensitivity (%) | Specificity (%) | Positive likelihood ratio | Negative likelihood ratio | |
|---|---|---|---|---|---|---|---|
ESR, mm/H | 20 | 0.782 | (0.672,0.893) | 71.8 | 62.1 | 1.89 | 0.45 |
CRP, mg/L | 10 | 0.736 | (0.620,0.852) | 60.0 | 79.0 | 2.90 | 0.50 |
Carotid artery wall thickness, mm | 1.75 | 0.725 | (0.602,0.848) | 78.9 | 60.7 | 2.01 | 0.35 |
Carotid wall vascularization grade | Grade 2 | 0.710 | (0.586,0.834) | 62.5 | 73.3 | 2.34 | 0.51 |
Combined CEUS parameters (parallel test) | – | 0.784 | (0.672,0.895) | 86.8 | 60.7 | 2.21 | 0.22 |
CEUS combined ESR (serial test) | – | 0.848 | (0.751,0.944) | 81.1 | 81.5 | 4.38 | 0.23 |
CEUS combined CRP (serial test) | – | 0.821 | (0.720,0.921) | 73.7 | 74.1 | 2.84 | 0.36 |