Figure 2From: The correlation of SUVmax with pathological characteristics of primary tumor and the value of Tumor/ Lymph node SUVmax ratio for predicting metastasis to lymph nodes in resected NSCLC patients The receiver operating characteristics (ROC) curve for the optimal cut off value for tumor/lymph node SUVmax ratios. Area under the curve: 0.716; 95% confidence interval: 0.584 to 0.847; p = 0.01. A T/LN SUVmax ratio of 5 or lower suggest a lymph node to be malignant with a sensitivity of 92.8% and specificity of 47%.Back to article page