TABLE 3

Accuracy of ¹⁸F-FDG PET/CT in Predicting TRG3–4 Vs. TRG1 at CRE-2/3 with Optimal Cutoffs

Parameter	Area under ROC curve	95% confidence interval	Cutoff	Sensitivity (%)	Specificity (%)
SUL_max tumor	0.70	0.57–0.83	2.93	66	74
SUL_max tumor-to-esophagus ratio	0.70	0.56–0.83	1.47	73	63
Absolute ΔSUL_max	0.59	0.45–0.73	4.03	56	70
Percentage ΔSUL_max	0.64	0.50–0.78	−56.31	61	74