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Sensitivity and specificity of 7T neuromelanin measures in differentiating cohorts.
| PD vs. Non-PD | PD vs. ET | AR vs. TD | ||||
|---|---|---|---|---|---|---|
| Sensitivity | Specificity | Sensitivity | Specificity | Sensitivity | Specificity | |
| Total SNpc volume | 100% | 96.8% | 95.2% | 100% | 100% | 58.3% |
| Average contrast ratio | 52.4% | 83.9% | 95.2% | 46.2% | 66.7% | 71.4% |
| Asymmetry index | 100% | 85.7% | 100% | 85.7% | 25.0% | 100% |
PD Parkinson’s disease, ET essential tremor, Non-PD controls and essential tremor cohort, TD tremor dominant PD, AR akinetic-rigid PD.
