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Table 5 Multivariate analysis with significant clinicopathologic and 18F-PET/MRI parameters

From: Prognostic value of simultaneous 18F-FDG PET/MRI using a combination of metabolo-volumetric parameters and apparent diffusion coefficient in treated head and neck cancer

Parameters Model with MTV Model with MTV/ADCmean Model with TLG/ADCmean
Hazards ratio (95% CI) P value Hazards ratio (95% CI) P value Hazards ratio (95% CI) P value
Lymphatic invasion (yes vs. no) 2.66 (1.13–6.27) 0.026* 2.66 (1.13–6.27) 0.026* 2.57 (1.02–6.45) 0.044*
Perineural invasion (yes vs. no)   NS     NS
MTV (> 11.08 vs. ≤ 11.08) 3.06 (1.31–7.13) 0.010*   N/A   N/A
(MTV/ADCmean) × 1000 (> 10.8 vs. ≤ 10.8)   N/A 3.12 (1.31–7.48) 0.011*   N/A
(TLG/ADCmean) × 1000 (> 108.9 vs. ≤ 108.9)   N/A   N/A 4.33 (1.72–10.87) 0.002*
  1. NS not significant, N/A not assessed
  2. *Statistically significant (P < 0.05)