Reasons for conversion from radial access
| Conversion case | Reason for conversion |
| 1 | Radial loop encountered that could not be straightened due to anatomy and arterial spasm |
| 2 | Unable to access left ICA due to proximal CCA loop and significant subclavian-innominate curvature |
| 3 | Left sided access due to right aberrant subclavian artery, unable to access bilateral ICAs due to significant tortuosity |
CCA, common carotid artery; ICA, internal carotid artery.