Radiological Staging of Thyroid-Associated Ophthalmopathy: Comparison of T1 Mapping with Conventional MRI

Table 1

Discriminating performance of T1RT_CS and SIR between active and inactive TAOs.

Parameters	AUC	Cutoff	Sensitivity %	Specificity %
T1RTCS	0.830 (0.732–0.928)	1000.00	72.0(57.5–83.8)	90.0(73.5–97.9)
SIR	0.852 (0.761–0.943)	2.90	80.0(66.3–90.0)	83.3(65.3–94.4)
T1RTCS + SIR	0.900 (0.832–0.968)	—	86.0(73.3–94.2)	83.3(65.3–94.4)

The unit of T1RT_CS is ms. T1RT = T1 relaxation time; CS = cold spot; SIR = signal intensity ratio; TAO = thyroid-associated ophthalmopathy; AUC = area under curve.