Metabolic Tumor Volume by ¹⁸F-FDG PET/CT Can Predict the Clinical Outcome of Primary Malignant Spine/Spinal Tumors

Figure 2

ROC curve analysis comparing the prognostic accuracy for overall survival and determining the optimal cut-off values. AUCs of (a), MTV (b), and TLG (c) were 0.50, 0.65, and 0.58, respectively. The optimal cut-off values for PFS derived from the AUC data were MTV 83 ml (sensitivity: 80%, specificity: 73%) and TLG 257 SUVml (sensitivity: 80%, specificity: 68%).

(a)

(b)

(c)