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Tissue injury scoring criteria.
| Items | Severity | Score |
|---|---|---|
| Necrotic range (area of brain tissue necrosis/the entire affected side of the brain) | None | 0 |
| 1%–25% | 1 | |
| 26%–50% | 2 | |
| 51%–75% | 3 | |
| 76%–100% | 4 | |
| Degree of the lesion | None | 0 |
| Slight | 1 | |
| Little | 2 | |
| Moderate | 3 | |
| Serious | 4 | |
| Extreme serious | 5 |
