Screening for and Treatment of Blunt
Cerebrovascular Injuries Algorithm
Table 1
Blunt Carotid & Vertebral Artery Injury Grading Scale32
| Injury Grade | Description |
| I | Luminal irregularity or dissection with < 25% luminal narrowing |
| II | Dissection or intramural hematoma with ³ 25% luminal narrowing, intraluminal thrombus, or raised intimal flap |
| III | Pseudoaneurysm |
| IV | Occlusion |
| V | Transection with free extravasation |