Table 2 Diagnostic efficiency of GTV, PTV, and GPTV across training and validation cohort
Radiomic models | Area under curve(95%CI) | Accuracy | Sensitivity | Specificity | Positive predictive value | Negative predictive value |
|---|---|---|---|---|---|---|
Training cohort | ||||||
GTV | 0.838(0.821–0.873) | 80.68% | 83.80% | 78.40% | 73.80% | 87.00% |
PTV | 0.809(0.792–0.826) | 72.72% | 85.40% | 63.80% | 67.30% | 83.30% |
GPTV | 0.855(0.838–0.872) | 81.68% | 75.70% | 84.30% | 77.80% | 77.80% |
Validation cohort | ||||||
GTV | 0.755(0.729–0.768) | 72.88% | 77.80% | 68.80% | 67.70% | 78.60% |
PTV | 0.777(0.701–0.812) | 74.58% | 78.30% | 72.20% | 64.30% | 83.90% |
GPTV | 0.801(0.719–0.902) | 81.36% | 75.70% | 84.30% | 77.80% | 82.70% |