Collateral circulation ... of acute stroke with anterior circulation ischemia, comprising 134 cases with unilateral proximal (M1 and/or M2) middle cerebral artery (MCA) occlusion and 235 without ...

Stenosis or occlusion can involve both proximal and distal segments of the subclavian artery, each with its ... The extensive collateral network present, along with the usual absence of multilevel ...

This circle of communicating arteries, known as the Circle of Willis, provides collateral cerebral ... brain is called the penumbra. Occlusion of a minor artery will result in a small core and ...

the vertebral vessels filled from the carotid arteries. With total occlusion of 1 subclavian artery and partial obstruction of the contralateral vessel, the pressure gradient favors retrograde ...

For patients with large vessel occlusion presenting between 4.5 and 24 hours, intra-arterial tenecteplase after successful thrombectomy results in improved likelihood of excellent outcome (modified ...

The left main coronary artery arises from ... and the left circumflex coronary arteries. Since the left main supplies a very large amount of myocardium, occlusion is often fatal resulting in ...