2024
Automated detection of early signs of irreversible ischemic change on CTA source images in patients with large vessel occlusion
Mak A, Matouk C, Avery E, Behland J, Haider S, Frey D, Madai V, Vajkoczy P, Griessenauer C, Zand R, Hendrix P, Abedi V, Sanelli P, Falcone G, Petersen N, Sansing L, Sheth K, Payabvash S, Malhotra A. Automated detection of early signs of irreversible ischemic change on CTA source images in patients with large vessel occlusion. PLOS ONE 2024, 19: e0304962. PMID: 38870240, PMCID: PMC11175522, DOI: 10.1371/journal.pone.0304962.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overBrain IschemiaComputed Tomography AngiographyDiffusion Magnetic Resonance ImagingFemaleHumansIschemic StrokeMaleMiddle AgedRetrospective StudiesROC CurveStrokeConceptsDiffusion-weighted imagingLarge vessel occlusionIrreversible ischemic changesPoor functional outcomeFunctional outcomesIschemic changesInfarct volumeAlberta Stroke Program Early CT ScorePredicting poor functional outcomeVessel occlusionFollow-up diffusion-weighted imagingAnterior circulation LVO strokeCTA source imagesReceiver operating characteristic curveExpert human readersPredicting final infarctionASPECTS regionsAdmission CTANon-inferior performanceBaseline CTACT scoreFinal infarctEndovascular therapyHU attenuationValidation cohort
2021
Diffusion-Weighted Imaging Lesions After Intracerebral Hemorrhage and Risk of Stroke
Murthy SB, Zhang C, Gupta A, Cho SM, Rivera-Lara L, Avadhani R, Gruber J, Iadecola C, Falcone GJ, Sheth KN, Qureshi AI, Goldstein JN, Hanley DF, Kamel H, Ziai WC. Diffusion-Weighted Imaging Lesions After Intracerebral Hemorrhage and Risk of Stroke. Stroke 2021, 52: 595-602. PMID: 33467877, PMCID: PMC8340082, DOI: 10.1161/strokeaha.120.031628.Peer-Reviewed Original ResearchConceptsRecurrent intracerebral hemorrhageRisk of strokeIntracerebral hemorrhageDWI lesionsIschemic strokeDiffusion-weighted imagingDiffusion-weighted imaging lesionsMultivariate Cox regression analysisMISTIE III trialIncident ischemic strokeCox regression analysisPoor functional outcomeCox regression modelIndividual patient dataATACH-2 trialLong-term riskMagnetic resonance imagingICH survivorsIncident strokeIII trialsImaging lesionsSecondary outcomesIschemic lesionsPrimary outcomeFunctional outcome
2020
A Pooled Analysis of Diffusion-Weighted Imaging Lesions in Patients With Acute Intracerebral Hemorrhage
Murthy SB, Cho SM, Gupta A, Shoamanesh A, Navi BB, Avadhani R, Gruber J, Li Y, Greige T, Lioutas VA, Norton C, Zhang C, Mandava P, Iadecola C, Falcone GJ, Sheth KN, Biffi A, Rosand J, Qureshi AI, Goldstein JN, Kidwell C, Awad I, Selim M, Hanley DF, Woo D, Kamel H, Ziai WC. A Pooled Analysis of Diffusion-Weighted Imaging Lesions in Patients With Acute Intracerebral Hemorrhage. JAMA Neurology 2020, 77: 1390-1397. PMID: 32687564, PMCID: PMC7372494, DOI: 10.1001/jamaneurol.2020.2349.Peer-Reviewed Original ResearchConceptsDiffusion-weighted imaging lesionsModified Rankin scoreDWI lesionsImaging lesionsAcute intracerebral hemorrhageIntracerebral hemorrhageFunctional outcomeSubgroup analysisChronic cerebral small vessel diseaseAdmission systolic blood pressureCerebral small vessel diseaseMulticenter prospective studySystolic blood pressurePoor functional outcomeSmall vessel diseaseDeep intracerebral hemorrhageBaseline hematoma volumeIndividual patient dataMixed-effects logistic regressionMixed effects regression modelsAcute sequelaeHypertensive vasculopathyRankin scoreSecondary outcomesBlood pressure
2019
Poor Outcomes Related to Anterior Extension of Large Hemispheric Infarction: Topographic Analysis of GAMES-RP Trial MRI Scans
Payabvash S, Falcone GJ, Sze GK, Jain A, Beslow LA, Petersen NH, Sheth KN, Kimberly WT. Poor Outcomes Related to Anterior Extension of Large Hemispheric Infarction: Topographic Analysis of GAMES-RP Trial MRI Scans. Journal Of Stroke And Cerebrovascular Diseases 2019, 29: 104488. PMID: 31787498, PMCID: PMC8820410, DOI: 10.1016/j.jstrokecerebrovasdis.2019.104488.Peer-Reviewed Original ResearchMeSH KeywordsAdministration, IntravenousAgedAnterior Cerebral ArteryCerebrovascular CirculationCerebrumClinical Trials as TopicClinical Trials, Phase II as TopicDiffusion Magnetic Resonance ImagingDisability EvaluationExtremitiesFemaleGlyburideHumansHypoglycemic AgentsInfarction, Anterior Cerebral ArteryInfarction, Middle Cerebral ArteryMaleMiddle AgedMiddle Cerebral ArteryPatient AdmissionPredictive Value of TestsRecovery of FunctionRisk FactorsTime FactorsTreatment OutcomeUnited StatesConceptsLarge hemispheric infarctionInfarct volumeIndependent predictorsInfarct lesionsHemispheric infarctionHealth Stroke Scale total scorePost-stroke day 3Anterior cerebral artery territoryTotal scoreLeft MCA infarctLeg motor functionNIHSS total scoreHours of onsetOnly independent predictorPoor functional outcomeBorder zoneScale total scoreAnterior extensionMultivariate regression analysisVoxel-wise analysisLHI patientsAdmission NIHSSArtery territoryGlibenclamide treatmentMCA infarct