Table 4.

Diagnostic accuracy of [18F]FDG-PET/CT for discrimination between active disease and remission during follow-up of large vessel vasculitis

No. of scans (no. scans during active disease)	Sensitivity (95% CI)	Specificity (95% CI)	Diagnostic odds ratio (95% CI)	Positive likelihood ratio (95% CI)	Negative likelihood ratio (95% CI)
136 (57)	77.3% (56.5–89.9)	70.9% (47.3–86.8)	8.27 (1.55–44.04)	2.65 (1.16–6.08)	0.32 (0.13–0.80)

Summary estimates of sensitivity, specificity, diagnostic odds ratio, positive likelihood ratio and negative likelihood ratio were determined with hierarchical logistic regression modelling (bivariate model). Data were obtained from 4 cross-sectional studies (136 scans from 111 patients) in which at least 90% of scans were performed whilst the patients were on treatment. 95% CI, 95% confidence interval