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Erythrocyte extravasation grading in brain parenchyma under DUS irradiation.
| Grading | Description |
|---|---|
| 0 | Almost no capillary injury and erythrocyte leakage |
| 1 | Several or a trace amount of erythrocyte extravasations |
| 2 | Petechial or sheet erythrocyte extravasations |
| 3 | Heavy bleeding or infarction lesions |
