Table 2 measured ADCmean and the statistical correlations
| Parameter |
ADCmean (*10− 3 mm2/s) | P-value |
|---|---|---|
| Llymph nodes | 0.001* | |
| Normal L.N’s | 1.267 ± 0.88 | |
| Metastatic L.N’s | 0.899 ± 0.99 | |
| Primary tumor grade | 0.076 | |
| Well differentiated | 0.936 ± 0.11 | |
| Moderately Well differentiated | 0.916 ± 0.84 | |
| poorly Well differentiated | 0.863 ± 0.59 | |
| Primary tumor localization | 0.431 | |
| Oropharyngeal | 0.866 ± 0.93 | |
| Hypopharyngeal | 0.936 ± 0.18 | |
| Laryngeal | 0.898 ± 0.15 | |
| Sinus carcinoma | 0.879 ± 0.54 | |
| Oral cavity | 0.903 ± 0.95 |