2024
Diffusion‐Weighted Imaging Fluid‐Attenuated Inversion Recovery Mismatch on Portable, Low‐Field Magnetic Resonance Imaging Among Acute Stroke Patients
Sorby‐Adams A, Guo J, de Havenon A, Payabvash S, Sze G, Pinter N, Jaikumar V, Siddiqui A, Baldassano S, Garcia‐Guarniz A, Zabinska J, Lalwani D, Peasley E, Goldstein J, Nelson O, Schaefer P, Wira C, Pitts J, Lee V, Muir K, Nimjee S, Kirsch J, Iglesias J, Rosen M, Sheth K, Kimberly W. Diffusion‐Weighted Imaging Fluid‐Attenuated Inversion Recovery Mismatch on Portable, Low‐Field Magnetic Resonance Imaging Among Acute Stroke Patients. Annals Of Neurology 2024, 96: 321-331. PMID: 38738750, PMCID: PMC11293843, DOI: 10.1002/ana.26954.Peer-Reviewed Original ResearchStroke patientsAcute ischemic strokeCut-pointsIschemic strokeStroke patients <Diagnosis of acute ischemic strokeSignal intensity ratioFluid-attenuated inversion recoveryAcute stroke patientsOptimal cut-pointMagnetic resonance imagingDiffusion-weighted imagingDWI-FLAIR mismatchStroke onsetTrained assessorsNational InstituteStrokeThrombolytic interventionNegative predictive valueFLAIR hyperintensitiesPatientsInterobserver agreementHyperacute strokeDiffusion-weightedPredictive value
2021
Cost-effectiveness of endovascular thrombectomy in patients with low Alberta Stroke Program Early CT Scores (< 6) at presentation.
Wu X, Payabvash S, Matouk CC, Lev MH, Wintermark M, Sanelli P, Gandhi D, Malhotra A. Cost-effectiveness of endovascular thrombectomy in patients with low Alberta Stroke Program Early CT Scores (< 6) at presentation. Journal Of Neurosurgery 2021, 135: 1645-1655. PMID: 33962378, DOI: 10.3171/2020.9.jns202965.Peer-Reviewed Original ResearchAlberta Stroke Program Early CT ScoreLow Alberta Stroke Program Early CT ScoreEndovascular thrombectomyLarge vessel occlusionMedical managementCT scoreBetter outcomesCost-effective strategyEVT-treated patientsIncremental cost-effectiveness ratioAcute ischemic strokeCost-effectiveness ratioDecision-analytical studyIschemic strokePoor outcomeVessel occlusionLifetime horizonSignificant disabilityPatientsHealth outcomesAge groupsPerfect healthSocietal perspectiveQALYHealth benefits
2020
Cost-effectiveness of endovascular thrombectomy in patients with acute stroke and M2 occlusion
Khunte M, Wu X, Payabvash S, Zhu C, Matouk C, Schindler J, Sanelli P, Gandhi D, Malhotra A. Cost-effectiveness of endovascular thrombectomy in patients with acute stroke and M2 occlusion. Journal Of NeuroInterventional Surgery 2020, 13: 784-789. PMID: 33077578, DOI: 10.1136/neurintsurg-2020-016765.Peer-Reviewed Original ResearchConceptsEndovascular thrombectomyMedical managementProbabilistic sensitivity analysesM2 occlusionsAcute strokeBranch occlusionEVT-treated patientsAcute ischemic strokeQuality-adjusted life yearsLifetime quality-adjusted life yearsDecision analytic modelDecision analytic studyIschemic strokeReperfusion techniquesLifetime horizonBetter outcomesPatientsLife yearsAge groupsPerfect healthSocietal perspectiveCost-effective strategyStrokeHealth benefitsOcclusion
2019
Comparative Effectiveness of Endovascular Thrombectomy in Elderly Stroke Patients
Malhotra A, Wu X, Payabvash S, Matouk CC, Forman HP, Gandhi D, Sanelli P, Schindler J. Comparative Effectiveness of Endovascular Thrombectomy in Elderly Stroke Patients. Stroke 2019, 50: 963-969. PMID: 30908156, DOI: 10.1161/strokeaha.119.025031.Peer-Reviewed Original ResearchConceptsQuality-adjusted life yearsIntravenous thrombolysisEndovascular thrombectomyLarge vessel occlusionAge 80 yearsEVT strategyVessel occlusionModified Rankin Scale scorePoststroke functional outcomeAcute ischemic strokeRankin Scale scoreElderly stroke patientsMarkov decision-analytic modelYears of ageDecision analytic modelMultiple sensitivity analysesPurpose- StrokeAcute strokeBaseline disabilityElderly patientsIschemic strokeStroke patientsFunctional outcomeHealthy patientsAdvanced age
2016
Prominent cortical and medullary veins on susceptibility-weighted images of acute ischaemic stroke
Payabvash S, Benson JC, Taleb S, Rykken JB, Hoffman B, Oswood MC, McKinney AM. Prominent cortical and medullary veins on susceptibility-weighted images of acute ischaemic stroke. British Journal Of Radiology 2016, 89: 20160714. PMID: 27805839, PMCID: PMC5604931, DOI: 10.1259/bjr.20160714.Peer-Reviewed Original ResearchConceptsAcute ischemic strokeLarger infarct volumesMedullary veinsIschemic strokeInfarct volumeArterial occlusionSusceptibility-weighted imagesConsecutive patientsClinical outcomesCortical veinsProminent cortical veinsPosterior circulation territoryPoor clinical outcomeSeverity of symptomsFair interobserver agreementSWI seriesAcute strokeSymptom onsetIndependent predictorsClinical variablesSWI scansPatientsStrokeImaging implicationsProminent veins
2015
Detection of Intraparenchymal Hemorrhage After Endovascular Therapy in Patients with Acute Ischemic Stroke Using Immediate Postprocedural Flat‐Panel Computed Tomography Scan
Payabvash S, Khan AA, Qureshi MH, Saeed O, Suri MF, Qureshi AI. Detection of Intraparenchymal Hemorrhage After Endovascular Therapy in Patients with Acute Ischemic Stroke Using Immediate Postprocedural Flat‐Panel Computed Tomography Scan. Journal Of Neuroimaging 2015, 26: 213-218. PMID: 26282065, DOI: 10.1111/jon.12277.Peer-Reviewed Original ResearchConceptsMultidetector CT studiesNegative predictive valueIschemic stroke patientsIntraparenchymal hemorrhageCT scanEndovascular treatmentHyperdense lesionParenchymal lesionsStroke patientsPredictive valueCT studiesMultidetector CTAcute ischemic stroke patientsAcute ischemic strokeAcute stroke patientsMultidetector CT scanPositive predictive valueEndovascular therapyIschemic strokePost procedureTomography scanSeparate cohortSuch lesionsPatientsDiagnostic value
2012
Improved 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 ResearchConceptsPoor 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