...WeiZhuang Yuan; Hui-Sheng Chen; Yi Yang; Meng Zhang; Le Fang; Shi-Wen Wu; MingLi Li; Cai-Yan Liu; YiNing Huang; YiNing Wang; Wei-Hai Xu Introduction: There has been an increasing demand for imaging methods that provide a comprehensive evaluation of intracranial clot and collateral circulation...

... sufficient collateral pathways. Therefore, the assessment of intracranial collaterals is essential for the acute and long-term management of these patients and accurate estimation of further stroke risk. Methods: Acute stroke patients with unilateral ICAO were prospectively enrolled. We assessed...

...Sergio Amaro; Arturo Renú; Carlos Laredo; Mar Castellanos; Juan F. Arenillas; Laura Llull; Salvatore Rudilloso; Xabier Urra; Victor Obach; Ángel Chamorro; on behalf of the URICO-ICTUS investigators Background: Collateral circulation may modify the effect of neuroprotective therapies. We report...

...Alexandre Gauthier; Patrick Gérardin; Pauline Renou; Sharmila Sagnier; Sabrina Debruxelles; Mathilde Poli; François Rouanet; Stéphane Olindo; Igor Sibon Background: Along with pharmacological and mechanical recanalization, improving cerebral perfusion through the recruitment of collateral vessels...

...Raoul Pop; Monica Manisor; Valérie Wolff; Guy Freys; Mihaela Simu; Christian Marescaux; Rémy Beaujeux Background and Purpose: In order to attribute a diagnostic value to angiographic runs performed before revascularization, we aimed at developing a regional evaluation of leptomeningeal collateral...

...Harri Rusanen; Jukka T. Saarinen; Niko Sillanpää Background: We studied the impact of collateral circulation on CT perfusion (CTP) parametric maps and the amount of salvaged brain tissue, the imaging and clinical outcome at 24 h and at 3 months in a retrospective acute (<3 h) stroke cohort (105...

...Harri Rusanen; Jukka T. Saarinen; Niko Sillanpää Background: The integrity of collateral circulation is a major prognostic factor in ischemic stroke. Patients with good collateral status have larger penumbra and respond better to intravenous thrombolytic therapy. High systolic blood pressure...

... CT Scan (ASPECTS) system. To evaluate the degree of collateral flow, distal hyperintense vessels (DHV) on FLAIR and vessels on post-contrast time-of-flight MR angiography (TOF MRA) source images were graded respectively as 3 groups: none/subtle/prominent and poor/moderate/good. Diffusion...

... to angiographic features (collaterals, stenosis location and stenosis severity). Methods: We evaluated infarct patterns in the territory of a stenotic intracranial artery on neuroimaging performed at baseline and during follow-up if a recurrent stroke occurred in patients enrolled in the Warfarin-Aspirin...

...A. Waaijer; M.S. van Leeuwen; H.B. van der Worp; H.J.M. Verhagen; W.P.T.M. Mali; B.K. Velthuis Purpose: To assess the presence of anterior and posterior collateral pathways in the circle of Willis in patients with symptomatic carotid artery stenosis (SCAS) and to compare this to patients without...

... large pontine infarcts. Prominent retrograde collateral supply from the carotids and/or anterograde from the cerebellar arteries was present in all patients with adequate angiographic studies (n = 18). BA occlusion was proximal in 12, mid-segmental in 7, and distal in 1 patient. Stroke etiology...

... edema Collaterals Symposium on Aspects of Thrombolytic Therapy in Acute Ischemic Stroke (Okayama, October 23,1992) Symposium Chairman: Haruhiko Kikuchi, MD (Kyoto) Supported by Sumitomo Pharmaceuticals Ccrcbrovasc Dis 1993:3:252-255 Rüdiger von Kummer Michael Forsting Department of Neuroradiology...