Table 6. Area under the receiver operating characteristics curve (AUC), 95% confidence interval for AUC and p-value for different threshold criteria using a functional region of interest with the heart region removed (fROI-heart) and the global inhomogeneity (GI) index.

Comparison between patients suffering from acute respiratory distress syndrome (ARDS) and control patients without pulmonary pathologies.

fROI-heart Threshold GI	AUC	95% CI	p (ARDS vs Control)
5%	0.76	0.58–0.93	0.02
10%	0.75	0.57–0.93	0.02
15%	0.74	0.57–0.91	0.02
20%	0.68	0.50–0.86	0.08
25%	0.68	0.49–0.86	0.09
30%	0.66	0.50–0.86	0.08
35%	0.65	0.46–0.84	0.15
40%	0.66	0.47–0.84	0.11
45%	0.68	0.50–0.86	0.08
50%	0.68	0.51–0.86	0.08
55%	0.68	0.50–0.85	0.09
60%	0.64	0.46–0.82	0.18
65%	0.66	0.49–0.84	0.11
70%	0.60	0.42–0.78	0.33
75%	0.65	0.47–0.83	0.15
80%	0.67	0.50–0.85	0.09
85%	0.64	0.45–0.82	0.19
90%	0.56	0.37–0.75	0.57
95%	0.71	0.53–0.88	0.05