Table 1.
Imaging data and treatment results of different S-M grades of intracranial AVM patients.
| S-M grade | Total | The number and rate of other changes in deformity (%) | Therapeutic strategy | Total (%) | ||
|---|---|---|---|---|---|---|
| Blood flow-related aneurysm | High flow arteriovenous fistula | Complication | Curative embolization | |||
| Grade I | 35 | 0 | 1 (2.9) | Curative embolization | 2 (5.7) | 26 (74.3) |
| Grade II | 77 | 4 (5.2) | 7 (9.1) | Curative embolization | 3 (3.9) | 50 (64.9) |
| Grade III | 72 | 5 (6.9) | 9 (12.5) | Increase embolization rate | 5 (6.9) | 11 (15.3) |
| Grade IV | 39 | 6 (15.4) | 6 (15.4) | Targeted or palliative | 3 (7.7) | 3 (7.7) |
| Grade V | 27 | 5 (18.5) | 6 (22.2) | Targeted or palliative | 0 | 0 |
| Total | 250 | 20 (8.0) | 29 (11.6) | 13 (5.2%) | 90 (36.0%) | |
Note: Targeted or palliative treatment is targeted at an aneurysm, an arteriovenous fistula, the drainage of venous stenosis, or the reduction of the lesion size in the vascular malformations.