- Predictive value for clinical complete response Table 3.17: Predictive value for clinical complete response Parameter AUC p Cut-off Sen Spe SUVmean 1 0.736 0.011 6.2 66.7 77.3 SUVmean 2 0.922 0.000 2.9 94.4 81.8 Pre-treatment tumor SUVmean (cut-off of 6.2) and post-treatment tumor SUVmean (cut-off of 2.9) had the sensitivity and specificity of 66.7%, 77.3%, and 94.4%, 81.8% in predicting complete response.