Spinal venous phase in slow-flow arteriovenous fistulas with perimedullary venous drainage
| Feature | Overall | Venous Phase Absent | Venous Phase Present |
|---|---|---|---|
| No. of lesions | 30 (100%) | 18 (60.0%) | 12 (40.0%) |
| SDAVF | 11 | 8 (44.4%) | 3 (25%) |
| SEAVF | 17 | 9 (50.0%) | 8 (66.7%) |
| SDAVF/SEAVF | 2 | 1 (5.6%) | 1 (8.3%) |
| Male predominance | 26/30 (86.7%) | 14/18 (77.8%) | 12/12 (100%) |
| Age (average) | 65 | 66.6 | 64.7 |
| Symptomatic | 29/30 (96.7%) | 18/18 (100%) | 11/12 (91.2%) |
| Flow voids on MRI | 19 (63.3%) | 10/18 (55.6%) | 9/12 (75.0%) |
| Thoracic location | 11 | 6 (33.3%) | 5 (41.7%) |
| Lumbar location | 11 | 8 (44.4.%) | 3 (25.0%) |
| Sacral location | 8 | 4 (22.2%) | 4 (33.3%) |