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Cut-off values for distinguishing vasculitic artery from normal artery in suspected cases of GCA with sensitivities and specificities for a clinical diagnosis of GCA (17).
| Artery |
IMT cut-off (mm) |
Sensitivity | Specificity |
|---|---|---|---|
| Common Superficial Temporal Artery (STA) | 0.42 | 100% | 100% |
| Frontal branch of STA | 0.34 | 100% | 100% |
| Parietal branch of STA | 0.29 | 97.2% | 98.7% |
| Facial artery | 0.37 | 87.5% | 98.8% |
| Axillary artery | 1.0 | 100% | 100% |
