Table 4 The ability of different NIRA parameters in predicting the efficacy of neoadjuvant chemotherapy.

From: Dual-energy CT iodine map in predicting the efficacy of neoadjuvant chemotherapy for hypopharyngeal carcinoma: a preliminary study

 

AUC

P

Cut-off value

Sensitivity

Specificity

Youden index

NIRAmean-A

0.703

0.022

0.148

0.821

0.600

0.421

NIRAmax-A

0.692

0.030

0.236

0.538

0.800

0.338

NIRAmean-P

0.809

< 0.001

0.375

0.769

0.800

0.569

NIRAmax-P

0.757

0.004

0.494

0.744

0.800

0.544

  1. AUC area under the curve; NIRA Normalized iodine-related attenuation; NIRAmean-A the mean NIRA of maximum slice of lesion at arterial phase; NIRAmax-A the NIRA of most enhanced region of lesion at arterial phase; NIRAmean-P the mean NIRA of maximum slice of lesion at parenchymal phase; NIRAmax-P the NIRA of most enhanced region of lesion at parenchymal phase.
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