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

Figure 1

ROC curve analysis comparing the prognostic accuracy for disease progression and determining the optimal cut-off values. AUCs of (a), MTV (b), and TLG (c) were 0.48, 0.76, and 0.67, respectively. The optimal cut-off values for PFS derived from the AUC data were MTV 45 ml (sensitivity: 78%, specificity: 75%) and TLG 150 SUVml (sensitivity: 78%, specificity: 60%).

(a)

(b)

(c)