2017
Cerebral regions preserved by successful endovascular recanalization of acute M1 segment occlusions: a voxel based analysis
Payabvash S, Taleb S, Qureshi AI. Cerebral regions preserved by successful endovascular recanalization of acute M1 segment occlusions: a voxel based analysis. British Journal Of Radiology 2017, 90: 20160869. PMID: 28165757, PMCID: PMC5605076, DOI: 10.1259/bjr.20160869.Peer-Reviewed Original ResearchConceptsM1 segment occlusionDisability/deathSuccessful endovascular recanalizationVoxel-based analysisFinal infarct volumeSuccessful recanalizationSegment occlusionInfarct volumeFavorable outcomePrecentral gyrusCerebral regionsEndovascular recanalizationEndovascular treatmentInsular ribbonSmaller final infarct volumesDays post-symptom onsetMiddle cerebral artery M1 segmentModified Rankin Scale scoreCerebral Infarction scoreTimely reperfusion treatmentEarly clinical outcomesHigh ratePost-symptom onsetSmaller infarct volumesRankin Scale score
2016
Clinical diffusion mismatch better discriminates infarct growth than mean transit time–diffusion weighted imaging mismatch in patients with middle cerebral artery–M1 occlusion and limited infarct core
Nogueira RG, Kemmling A, Souza LM, Payabvash S, Hirsch JA, Yoo AJ, Lev MH. Clinical diffusion mismatch better discriminates infarct growth than mean transit time–diffusion weighted imaging mismatch in patients with middle cerebral artery–M1 occlusion and limited infarct core. Journal Of NeuroInterventional Surgery 2016, 9: 127. PMID: 26957483, DOI: 10.1136/neurintsurg-2014-011602.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overCerebral AngiographyCerebral InfarctionCerebrovascular CirculationDiffusion Magnetic Resonance ImagingDisease ProgressionFemaleHumansImage Processing, Computer-AssistedInfarction, Middle Cerebral ArteryMalePredictive Value of TestsRetrospective StudiesStrokeTomography, X-Ray ComputedConceptsClinical-diffusion mismatchMCA M1 occlusionAdmission Alberta Stroke Program Early CT scoreSmall infarct coreBaseline NIHSS scoreInfarct growthNIHSS scoreInfarct coreDiffusion mismatchDWI volumeStroke patientsAlberta Stroke Program Early CT ScoreMiddle cerebral artery M1 occlusionProximal middle cerebral artery occlusionMiddle cerebral artery occlusionMTT lesionsUni-/multivariate analysesBaseline National InstitutesHealth Stroke ScaleAdmission NIHSS scoreCerebral artery occlusionConsecutive stroke patientsOnly independent predictorDWI lesionsStroke Scale
2015
Middle Cerebral Artery Residual Contrast Stagnation on Noncontrast CT Scan Following Endovascular Treatment in Acute Ischemic Stroke Patients
Payabvash S, Qureshi MH, Taleb S, Pawar S, Qureshi AI. Middle Cerebral Artery Residual Contrast Stagnation on Noncontrast CT Scan Following Endovascular Treatment in Acute Ischemic Stroke Patients. Journal Of Neuroimaging 2015, 25: 946-951. PMID: 25684437, DOI: 10.1111/jon.12211.Peer-Reviewed Original ResearchConceptsAcute ischemic stroke patientsMCA M1 occlusionIschemic stroke patientsIntraparenchymal hemorrhageEndovascular treatmentContrast stagnationCT scanPostprocedural CT scanNoncontrast CT scanStroke patientsM1 occlusionContralateral arteryHounsfield unitsAverage HU valueM1 segmentRelative riskNoncontrast CTPatientsScansArteryTreatmentAttenuation differenceHU valuesOcclusionRisk
2013
Good Outcome Rate of 35% in IV-tPA–Treated Patients With Computed Tomography Angiography Confirmed Severe Anterior Circulation Occlusive Stroke
González RG, Furie KL, Goldmacher GV, Smith WS, Kamalian S, Payabvash S, Harris GJ, Halpern EF, Koroshetz WJ, Camargo EC, Dillon WP, Lev MH. Good Outcome Rate of 35% in IV-tPA–Treated Patients With Computed Tomography Angiography Confirmed Severe Anterior Circulation Occlusive Stroke. Stroke 2013, 44: 3109-3113. PMID: 24003051, PMCID: PMC4374554, DOI: 10.1161/strokeaha.113.001938.Peer-Reviewed Original ResearchConceptsAnterior circulation occlusionGood outcome rateIV-tPACT angiographyBetter outcomesRankin ScaleOutcome ratesAnterior circulation ischemic strokeHealth Stroke Scale scoreIntravenous tissue plasminogen activatorAdmission National InstitutesEndovascular therapy trialsNoncontrast CT scanningStroke Scale scoreLarge artery occlusionIV-tPA treatmentLogistic regression analysisTissue plasminogen activatorRoutine clinical protocolsSymptomatic strokeOcclusive strokeAcute strokeAdmission NIHSSArtery occlusionIschemic stroke
2012
Malignant CTA Collateral Profile Is Highly Specific for Large Admission DWI Infarct Core and Poor Outcome in Acute Stroke
Souza LC, Yoo AJ, Chaudhry ZA, Payabvash S, Kemmling A, Schaefer PW, Hirsch JA, Furie KL, González RG, Nogueira RG, Lev MH. Malignant CTA Collateral Profile Is Highly Specific for Large Admission DWI Infarct Core and Poor Outcome in Acute Stroke. American Journal Of Neuroradiology 2012, 33: 1331-1336. PMID: 22383238, PMCID: PMC3888794, DOI: 10.3174/ajnr.a2985.Peer-Reviewed Original ResearchConceptsDWI lesion volumeLesion volumeDWI volumeNIHSS scorePoor outcomeHigher median NIHSS scoresROC analysisDWI lesion sizeLarger DWI volumeMedian NIHSS scoreAcute stroke treatmentAdmission NIHSS scoreOnly independent predictorPoor functional outcomeIntracranial ICA occlusionCTA collateralsAcute strokeICA occlusionProximal occlusionIndependent predictorsStroke treatmentInfarct sizeClinical variablesFunctional outcomeInfarct coreImproved Outcome Prediction Using CT Angiography in Addition to Standard Ischemic Stroke Assessment: Results from the STOPStroke Study
González RG, Lev MH, Goldmacher GV, Smith WS, Payabvash S, Harris GJ, Halpern EF, Koroshetz WJ, Camargo EC, Dillon WP, Furie KL. Improved Outcome Prediction Using CT Angiography in Addition to Standard Ischemic Stroke Assessment: Results from the STOPStroke Study. PLOS ONE 2012, 7: e30352. PMID: 22276182, PMCID: PMC3262833, DOI: 10.1371/journal.pone.0030352.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overBrain IschemiaCerebral AngiographyFemaleHumansMaleMiddle AgedStrokeTomography, X-Ray ComputedConceptsPoor outcomeCT angiographyStroke assessmentOdds ratioNoncontrast CTAdmission NIH Stroke Scale scoreAlberta Stroke Program Early CT ScoreBoston Acute Stroke Imaging ScaleScale scoreModified Rankin Scale scoreNIH Stroke Scale scoreOutcome predictionAcute stroke assessmentAdmission CT angiographyProximal middle cerebralStroke Scale scoreAcute ischemic strokeRankin Scale scoreDistal internal carotidIndependent outcome predictorsStroke outcome predictionSignificant clinical toolNCCT ASPECTSIschemic strokeMiddle cerebral