The utility of texture analysis based on quantitative synthetic magnetic resonance imaging in nasopharyngeal carcinoma: a preliminary study

Table 3 ROC curve analysis of three single functional models in differentiation between NPC and NPH in volunteers

Parameters	NPC	NPH	P	Model fit	AUC (95% CI)	Sensitivity%	Specificity%	Accuracy%
T1 map derived model				0.870	0.972 (0.948, 0.996)	88.1	95.8	88.8
T1_Median	1405.10 (1366.50, 1519.00)	1617.13 (1464.85, 1761.93)	0.000
T1_Range	2718.00 (2170.00, 3256.40)	2357.80 (1910.30, 3016.78)	0.041
T1_Total Energy (× 10⁶)	8800.08 (5866.79, 13,639.98)	1682.82 (1083.85, 2798.88)	0.000
T2 map derived model				1.000	0.986 (0.970, 1.000)	96.6	93.7	94.4
T2_Minimum	53.70 (47.10, 59.20)	65.20 (62.93, 68.08)	0.000
T2_Total Energy (× 10⁶)	27.36 (20.71, 40.30)	5.18 (2.88, 7.80)	0.000
PD map derived model				0.890	0.975 (0.952, 0.998)	89.8	95.8	90.7
PD_90th percentile	100.10 (97.7, 100.7)	101.59 (100.86, 102.12)	0.000
PD_Total Energy (× 10⁶)	29.01 (21.29, 49.53)	5.12 (3.16, 7.75)	0.000

Data was expressed as median (interquartile range)
ROC, receiver operating characteristic; NPC, nasopharyngeal carcinoma; AUC, area under the curve; 95% CI, 95% confidence interval

ISSN: 1471-2342