| | Optimal cut-off | Sensitivity | Specificity | Accuracy |
---|
SUVmax | Standard-voxels | 1.8 | 81% | 95% | 85% |
Small-voxels | 2.6 | 78% | 98% | 84% |
TBratio | Standard-voxels | 2.4 | 80% | 82% | 80% |
Small-voxels | 3.3 | 84% | 77% | 82% |
- The use of small-voxel images requires higher SUV cut-offs for accurate lymph node characterization. Furthermore, SUVmax showed a higher performance as compared to TBratio, with p = 0.04 for standard-voxels and p < 0.001 for small-voxels. However, the characterization performances were similar for standard- and small-voxel images, with p = 0.11 for SUVmax and p = 0.29 for TBratio
- SUV
max
maximum standardized uptake value, TB
ratio
ratio between the lymph node SUVmax and the lymph node background uptake, PET positron emission tomography