From the case: Balloon angioplasty for cerebral vasospasm
Frontal Internal carotid artery
An endovascular balloon catheter has been passed through a guiding catheter in the left ICA and directed into the left M1 segment over a micro guide wire. The two markers indicate the proximal and distal extent of the balloon (white arrows). The balloon has been inflated in the middle cerebral artery (black arrows).