Baseline demographics
| Characteristic | RAL+PSS | PSS only | P value |
| Number of participants | 20 | 20 | |
| Median age | 59 | 56 | 0.68 |
| % female | 70 | 55 | 0.327 |
| Femoral atherosclerosis | |||
| None | 5 | 6 | 0.88 |
| Mild | 11 | 12 | |
| Moderate | 1 | 0 | |
| Severe | 3 | 2 | |
| Procedure type | |||
| Aneurysm embolization | 9 | 5 | 0.45 |
| AVM embolization | 3 | 6 | |
| dAVF embolization | 3 | 3 | |
| Tumor embolization | 2 | 2 | |
| Other | 3 | 4 | |
Other cases included three venous stenting procedures for idiopathic intracranial hypertension, two intracranial angioplasty procedures, one spinal angiogram, and one pipeline reconstruction of arterial dissection.
AVM, arteriovenous malformation; dAVF, dural arteriovenous fistula; PSS, pressure-sensing sheath; RAL, radial arterial line.