Table 2 Comparison of MRI diagnostic performance in obstetric and adult traumatic brachial plexus injury as compared to operative findings
| Â | Obstetric cases | Adult cases |
|---|---|---|
Avulsion | ||
 Number | 12/19 | 48/50 |
 Sensitivity | 63% | 96% |
 Specificity | 89% | 95% |
 PPV | 66% | 94% |
 NPV | 87% | 96% |
Edema | ||
 Number | 14/23 | 16/18 |
 Sensitivity | 60% | 88% |
 Specificity | 99% | 100% |
 PPV | 87% | 100% |
 NPV | 96% | 99% |
Neuroma | ||
 Number | 8/10 | 3/5 |
 Sensitivity | 80% | 60% |
 Specificity | 100% | 100% |
 PPV | 100% | 100% |
 NPV | 99% | 99% |