Table 3.

All evaluable patients (n = 21).

Variable	HR	95% CI	P-value
F SUVmax w5	0.92	(0.16–5.20)	0.923
F SUVmax w9	1.92	(0.35–10.70)	0.455
F ADC w5	0.04	(0.00–1.02)	0.052
F ADC w9	0.02	(0.00–0.44)	0.013
F D w5	0.004	(0.00–0.22)	0.007
F D w9	0.08	(0.01–1.15)	0.063
F f w5	2.90	(0.55–15.30)	0.209
F f w9	0.58	(0.11–3.02)	0.519

The hazard ratios, 95% confidence intervals (CI) and p-values for univariate Cox regression analyses of DWI and PET variables at week 5 (Scan 1) and 9 (Scan 2) are presented in Table 3. There were two significant results: for F ADC in Scan 2 and F D in Scan 1. Both results showed that an increase in these parameters was related to improved survival. A similar strong trend was observed for F ADC in Scan1 and for F D in Scan2.