Table 2:

Receiver operating characteristic AUC values for PET/MR imaging NI-RADS performance

ROC CurveAUC95% CIP Value
SCC vs non-SCC subgroups
 NI-RADS 1° site vs 1° failure (SCC)0.8670.688–1.000.007
 NI-RADS 1° site vs 1° failure (non-SCC)0.8560.685–1.000.004
 NI-RADS LN vs LN failure (SCC)1.0001.000–1.000.024
 NI-RADS LN vs LN failure (non-SCC)0.9680.889–1.000.010
 PET/MR imaging NI-RADS by reader
 Reader A 1° site vs 1° failure0.8530.729–0.977<.001
 Reader B 1° site vs 1° failure0.8660.747–0.985<.001
 Reader A LN vs LN failure0.9510.890–1.000<.001
 Reader B LN vs LN failure0.9630.910–1.000<.001
MRI only NI-RADS by reader
 Reader A 1° site vs 1° failure0.8210.673–0.970<.001
 Reader B 1° site vs 1° failure0.7030.540–0.867.021
 Reader A LN vs LN failure0.7680.533–1.000.052
 Reader B LN vs LN failure0.9000.689–1.000.004
  • Note:—1° indicates the primary site; LN, lymph node.