Table 3 Comparison of NIRAs between effective and ineffective groups.

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

Groups

NIRAmean-A

NIRAmax-A

NIRAmean-P

NIRAmax-P

Ineffective

0.153 ± 0.055

0.189 ± 0.060

0.330 ± 0.129

0.438 ± 0.180

Effective

0.198 ± 0.084

0.257 ± 0.127

0.496 ± 0.157

0.609 ± 0.190

P value

0.022

0.030

 < 0.001

0.004

Power

0.450

0.490

0.895

0.755

  1. 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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