Comparisons of the per cent coverage of the brain and brainstem provided by four helmets in different angulations of shotlines
| Helmet | Coverage (all directions) (%) | Underneath (−30 degrees) (%) | Side (%) |
| ACH | 69.5 | 23.3 | 76.6 |
| DCH | 57.9 | 16.5 | 55.2 |
| CVC | 52.1 | 10.5 | 39.8 |
| VIRTUS | 68.7 | 21.7 | 75.4 |
| VIRTUS+nape | 75.5 | 38.1 | 80.1 |