{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["36(2)"],"submitter":["Ernst M"],"pubmed_abstract":["<h4>Background and purpose</h4>In proximal anterior circulation occlusive strokes, collateral flow is essential for good outcome. Collateralized vessel intensity in TOF- and contrast-enhanced MRA is variable due to different acquisition methods. Our purpose was to quantify collateral supply by using flow-weighted signal in TOF-MRA and blood volume-weighted signal in contrast-enhanced MRA to determine each predictive contribution to tissue infarction and reperfusion.<h4>Materials and methods</h4>Consecutively (2009-2013), 44 stroke patients with acute proximal anterior circulation occlusion met the inclusion criteria with TOF- and contrast-enhanced MRA and penumbral imaging. Collateralized vessels in the ischemic hemisphere were assessed by TOF- and contrast-enhanced MRA using 2 methods: 1)"],"journal":["AJNR. American journal of neuroradiology"],"pagination":["275-82"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC7965659"],"repository":["biostudies-literature"],"pubmed_title":["Prediction of infarction and reperfusion in stroke by flow- and volume-weighted collateral signal in MR angiography."],"pmcid":["PMC7965659"],"pubmed_authors":["Siemonsen S","Kemmling A","Thomalla G","Brehmer L","Ernst M","Forkert ND","Fiehler J"],"additional_accession":[]},"is_claimable":false,"name":"Prediction of infarction and reperfusion in stroke by flow- and volume-weighted collateral signal in MR angiography.","description":"<h4>Background and purpose</h4>In proximal anterior circulation occlusive strokes, collateral flow is essential for good outcome. Collateralized vessel intensity in TOF- and contrast-enhanced MRA is variable due to different acquisition methods. Our purpose was to quantify collateral supply by using flow-weighted signal in TOF-MRA and blood volume-weighted signal in contrast-enhanced MRA to determine each predictive contribution to tissue infarction and reperfusion.<h4>Materials and methods</h4>Consecutively (2009-2013), 44 stroke patients with acute proximal anterior circulation occlusion met the inclusion criteria with TOF- and contrast-enhanced MRA and penumbral imaging. Collateralized vessels in the ischemic hemisphere were assessed by TOF- and contrast-enhanced MRA using 2 methods: 1)","dates":{"release":"2015-01-01T00:00:00Z","publication":"2015 Feb","modification":"2025-04-20T02:27:03.383Z","creation":"2022-02-09T10:50:09.824Z"},"accession":"S-EPMC7965659","cross_references":{"pubmed":["25500313"],"doi":["10.3174/ajnr.A4145","10.3174/ajnr.a4145"]}}