Results of Characterization of Mediastinal Lymph Nodes by SUV Analysis of 18F-FDG PET and Correlation with Pathologic Diagnosis
| 18F-FDG PET (semiquantitative analysis) | ||||||
|---|---|---|---|---|---|---|
| All lymph nodes | Lung cancer patients | |||||
| Status | SUV < 2.5 | SUV ≥ 2.5 | Total | SUV < 2.5 | SUV ≥ 2.5 | Total |
| Benign | 238 TN | 63 FP | 301 | 202 TN | 39 FP | 241 |
| Metastasis | 8 FN | 62 TP | 70 | 8 FN | 62 TP | 70 |
| Total | 246 | 125 | 371 | 210 | 101 | 311 |
FN = false-negative; TN =true-negative; FP = false-positive; TP = true-positive.
SUV threshold of 2.5 was used for differentiation between benign and metastatic lymph nodes.