title: Collateral circulation in acute stroke: assessing methods and impact: a literature review.
abstract: Collateral circulation plays an important role in the clinical and radiological outcome after acute ischemic stroke. Several modalities are used to evaluate these alternative pathways with a growing interest in recent years. We conducted a literature review of studies evaluating collaterals at the acute phase of a carotid territory ischemic stroke. Most of them were based on conventional angiography and CT angiography, several on the basis of MRI and transcranial Doppler and, more recently, on the basis of dynamic CT angiography, which seems to be the most appropriate modality. Populations studied in these publications are often heterogeneous (especially concerning the occlusion site and the treatments performed) and many classifications have been proposed.
authors.affiliation: Service de neuroradiologie, hôpital Bocage, CHU de Dijon, 2, boulevard Maréchal-de-Lattre-de-Tassigny, 21079 Dijon, France. Electronic address: edouard.martinon@orange.fr.
authors.forename: Edouard
authors.initials: E
authors.lastname: Martinon
authors.affiliation: Service de neuroradiologie, hôpital Bocage, CHU de Dijon, 2, boulevard Maréchal-de-Lattre-de-Tassigny, 21079 Dijon, France.
authors.forename: Pierre Henry
authors.initials: PH
authors.lastname: Lefevre
authors.affiliation: Service de neuroradiologie, hôpital Bocage, CHU de Dijon, 2, boulevard Maréchal-de-Lattre-de-Tassigny, 21079 Dijon, France.
authors.forename: Pierre
authors.initials: P
authors.lastname: Thouant
authors.affiliation: Service de neurologie, hôpital général, CHU de Dijon, 3, rue Faubourg-Raines, 21033 Dijon, France.
authors.forename: Guy Victor
authors.initials: GV
authors.lastname: Osseby
authors.affiliation: Service de neuroradiologie, hôpital Bocage, CHU de Dijon, 2, boulevard Maréchal-de-Lattre-de-Tassigny, 21079 Dijon, France.
authors.forename: Frederic
authors.initials: F
authors.lastname: Ricolfi
authors.affiliation: Service de neuroradiologie, hôpital Bocage, CHU de Dijon, 2, boulevard Maréchal-de-Lattre-de-Tassigny, 21079 Dijon, France.
authors.forename: Adrien
authors.initials: A
authors.lastname: Chavent
mesh_terms: D001783:Blood Flow Velocity; D002533:Cerebral Angiography / Q000379:methods*; D002536:Cerebral Arteries / Q000000981:diagnostic imaging* / Q000473:pathology / Q000503:physiopathology*; D002560:Cerebrovascular Circulation; D003097:Collateral Circulation; D006801:Humans; D020521:Stroke / Q000175:diagnosis* / Q000503:physiopathology* / Q000628:therapy; D016896:Treatment Outcome
keywords: Angiography; CT angiography; Collateral circulation; Dynamic CT angiography; MRI; Stroke