Accuracy of DMI Indices on Blind-Test Cohort from Huashan Parkinsonian PET Imaging Dataset (Chinese Cohort) and German Cohort
| Diagnosis | Metrics | Huashan parkinsonian PET imaging dataset (Chinese cohort) | German cohort | ||
|---|---|---|---|---|---|
| Overall | Baseline | Follow-up | |||
| IPD | Sensitivity | 98.1% | 98.5% | 95.5% | 94.1% |
| Specificity | 90.0% | 88.1% | 97.6% | 84.0% | |
| PPV | 94.5% | 92.9% | 98.4% | 78.0% | |
| NPV | 96.4% | 97.4% | 93.2% | 95.9% | |
| MSA | Sensitivity | 88.5% | 81.8% | 95.4% | 82.4% |
| Specificity | 99.2% | 99.9% | 98.8% | 99.9% | |
| PPV | 96.4% | 99.9% | 95.5% | 99.9% | |
| NPV | 97.4% | 95.6% | 98.8% | 96.1% | |
| PSP | Sensitivity | 84.5% | 90.0% | 95.0% | 82.1% |
| Specificity | 97.8% | 97.7% | 96.6% | 94.1% | |
| PPV | 89.1% | 90.0% | 86.4% | 91.4% | |
| NPV | 97.0% | 97.7% | 98.8% | 87.3% | |