2024
Abbreviated MRI in the evaluation of dizziness: report turnaround times and impact on length of stay compared to CT, CTA, and conventional MRI
Tu L, Tegtmeyer K, de Oliveira Santo I, Venkatesh A, Forman H, Mahajan A, Melnick E. Abbreviated MRI in the evaluation of dizziness: report turnaround times and impact on length of stay compared to CT, CTA, and conventional MRI. Emergency Radiology 2024, 31: 705-711. PMID: 39034381, DOI: 10.1007/s10140-024-02273-7.Peer-Reviewed Original ResearchLength of stayEvaluation of dizzinessAbbreviated MRIConventional MRIMRI protocolEmergency departmentNon-contrast CT headConventional MRI protocolHead and neckPosterior circulation strokeAnalysis of length of stayTurnaround timeED length of stayCT headNo significant differenceAcute dizzinessCirculation strokeRetrospective analysisDizzinessAcute settingAssociated with greater impactMRI studiesImaging modalitiesMRIPatientsPrediction of Large Vessel Occlusion Stroke Using Clinical Registries for Research.
de Havenon A, Ayodele I, Alhanti B, Mac Grory B, Xian Y, Fonarow G, Smith E, Worrall B. Prediction of Large Vessel Occlusion Stroke Using Clinical Registries for Research. Neurology 2024, 102: e209424. PMID: 38759133, PMCID: PMC11175650, DOI: 10.1212/wnl.0000000000209424.Peer-Reviewed Original ResearchConceptsLarge vessel occlusionNIH Stroke ScaleConsistent with previous studiesAdult acute ischemic stroke patientsCross-sectional cohort analysisAcute ischemic stroke patientsLarge vessel occlusion strokePosterior circulation strokeDiagnosis of ischemic strokeReceiver operating curveNeuroimagingGWTG-StrokeIschemic stroke patientsVascular neuroimagingAdult patientsAtrial fibrillationCirculation strokeCohort analysisClinical covariatesStroke patientsOcclusion strokeVessel occlusionPrevious studiesCut-pointsStroke Scale
2023
Comprehensive analysis of the impact of procedure time and the ‘golden hour’ in subpopulations of stroke thrombectomy patients
Ash M, Dimisko L, Chalhoub R, Howard B, Cawley C, Matouk C, Pabaney A, Spiotta A, Jabbour P, Maier I, Wolfe S, T A, Kim J, Psychogios M, Mascitelli J, Starke R, Shaban A, Yoshimura S, De Leacy R, Kan P, Fragata I, Polifka A, Arthur A, Park M, Crosa R, Williamson R, Dumont T, Levitt M, Al Kasab S, Tjoumakaris S, Liman J, Saad H, Samaniego E, Fargen K, Grossberg J, Alawieh A. Comprehensive analysis of the impact of procedure time and the ‘golden hour’ in subpopulations of stroke thrombectomy patients. Journal Of NeuroInterventional Surgery 2023, 16: 1069-1075. PMID: 37875342, DOI: 10.1136/jnis-2023-020792.Peer-Reviewed Original ResearchSymptomatic intracranial hemorrhageSubpopulation of patientsProcedure timePosterior circulation strokeModified Rankin ScaleTissue plasminogen activatorEndovascular thrombectomyCirculation strokePoor outcomeGroin puncture to successful recanalizationAlberta Stroke Program Early CT ScoreAssociated with worse clinical outcomesRate of symptomatic intracranial hemorrhageIV tissue plasminogen activatorSymptomatic intracranial hemorrhage rateEffects of procedure timeIV tPA treatmentAge groupsOnset-to-groin timeAssociated with higher oddsAcute ischemic strokeCT scoreIntracranial hemorrhageDelayed presentationMulticenter studyCT With CTA Versus MRI in Patients Presenting to the Emergency Department With Dizziness: Analysis Using Propensity Score Matching.
Tu L, Navaratnam D, Melnick E, Forman H, Venkatesh A, Malhotra A, Yaesoubi R, Sureshanand S, Sheth K, Mahajan A. CT With CTA Versus MRI in Patients Presenting to the Emergency Department With Dizziness: Analysis Using Propensity Score Matching. American Journal Of Roentgenology 2023, 221: 836-845. PMID: 37404082, DOI: 10.2214/ajr.23.29617.Peer-Reviewed Original ResearchConceptsSecondary stroke prevention medicationsStroke prevention medicationsEmergency departmentPrevention medicationsEchocardiography evaluationPosterior circulation strokeProportion of patientsGroup of patientsPhysical examination findingsNeuroimaging resultsUse of MRIReview of systemsGreater frequencyPropensity-score matchingExamination findingsRetrospective studyED readmissionMedical historyHead CTClinical impactMRI examinationsBrain MRINeck CTADizzinessPatientsBorderzone Infarcts and Recurrent Cerebrovascular Events in Symptomatic Intracranial Arterial Stenosis: A Systematic Review and Meta-Analysis
Das S, Shu L, Morgan R, Shah A, Fayad F, Goldstein E, Chahien D, Maglinger B, Bokka S, Owens C, Abbasi M, Kvernland A, Siegler J, Mac Grory B, Nguyen T, Furie K, Khatri P, Mistry E, Prabhakaran S, Liebeskind D, Romano J, de Havenon A, Palaiodimou L, Tsivgoulis G, Yaghi S. Borderzone Infarcts and Recurrent Cerebrovascular Events in Symptomatic Intracranial Arterial Stenosis: A Systematic Review and Meta-Analysis. Journal Of Stroke 2023, 25: 223-232. PMID: 37282372, PMCID: PMC10250880, DOI: 10.5853/jos.2023.00185.Peer-Reviewed Original ResearchBorderzone infarctsIntracranial arterial stenosisRisk ratioNeurological deteriorationSystematic reviewRecurrent strokeInfarct patternsArterial stenosisAnterior circulation stroke patientsSymptomatic intracranial arterial stenosisRecurrent cerebrovascular eventsPosterior circulation strokeSymptomatic ICACerebrovascular eventsStroke recurrenceTerritorial infarctsDistal perfusionRecurrence rateStroke patientsSubgroup analysisThrombus embolizationOutcome eventsPlaque progressionInclusion criteriaHigh risk
2020
Assessment of Intracranial Atherosclerotic Plaques Using 3D Black‐Blood MRI: Comparison With 3D Time‐of‐Flight MRA and DSA
Tian X, Tian B, Shi Z, Wu X, Peng W, Zhang X, Malhotra A, Mossa‐Basha M, Sekhar L, Liu Q, Lu J, Hu C, Zhu C. Assessment of Intracranial Atherosclerotic Plaques Using 3D Black‐Blood MRI: Comparison With 3D Time‐of‐Flight MRA and DSA. Journal Of Magnetic Resonance Imaging 2020, 53: 469-478. PMID: 32864816, DOI: 10.1002/jmri.27341.Peer-Reviewed Original ResearchConceptsTransient ischemic attackDigital subtraction angiographyMagnetic resonance angiographyPosterior circulation strokeInterclass correlation coefficientDegree of stenosisBlack blood MRINonstenotic plaquesIntracranial stenosisPlaque assessmentIntracranial vessel wall imagingIschemic stroke patientsIntracranial artery stenosisIntracranial atherosclerotic plaquesFlight magnetic resonance angiographyMann-Whitney U testAtherosclerotic plaque assessmentStage 2 J. MagnT-testStudent's t-testVessel wall imagingIschemic attackCohort studyArtery stenosisStroke patientsCarotid, Vertebral, and Brachiocephalic Interventions
Anantha-Narayanan M, Nagpal S, Mena-Hurtado C. Carotid, Vertebral, and Brachiocephalic Interventions. Interventional Cardiology Clinics 2020, 9: 139-152. PMID: 32147116, DOI: 10.1016/j.iccl.2019.12.008.Peer-Reviewed Original ResearchConceptsProximal internal carotid arteryCommon carotid artery bifurcationPosterior circulation strokeVertebral artery stenosisInternal carotid arteryCoronary stealVertebrobasilar insufficiencyArtery atherosclerosisArtery stenosisCarotid atherosclerosisVertebral arteryMajor trialsInterventional techniquesCarotid arteryCarotid artery bifurcationHigh incidenceProximal segmentAtherosclerosisArtery bifurcationArteryCarotidBrachiocephalicStenosisInsufficiencyStroke
2019
A comparison of benign positional vertigo and stroke patients presenting to the emergency department with vertigo or dizziness
Hanna J, Malhotra A, Brauer PR, Luryi A, Michaelides E. A comparison of benign positional vertigo and stroke patients presenting to the emergency department with vertigo or dizziness. American Journal Of Otolaryngology 2019, 40: 102263. PMID: 31358317, DOI: 10.1016/j.amjoto.2019.07.007.Peer-Reviewed Original ResearchConceptsBenign paroxysmal positional vertigoStroke risk factorsCT/CTAEmergency departmentBPPV patientsNeurologic symptomsStroke patientsRisk factorsPositional vertigoCT headExam findingsNeurologic exam findingsPosterior circulation strokeProfile of patientsBenign positional vertigoParoxysmal positional vertigoCommon imaging modalityAcute strokeNeurologic examInitial imagingMRI brainDischarge diagnosisComputed tomographyPatientsVertigo
2018
Intravenous infusion of mesenchymal stem cells for protection against brainstem infarction in a persistent basilar artery occlusion model in the adult rat.
Namioka A, Namioka T, Sasaki M, Kataoka-Sasaki Y, Oka S, Nakazaki M, Onodera R, Suzuki J, Sasaki Y, Nagahama H, Kocsis JD, Honmou O. Intravenous infusion of mesenchymal stem cells for protection against brainstem infarction in a persistent basilar artery occlusion model in the adult rat. Journal Of Neurosurgery 2018, 131: 1308-1316. PMID: 30485204, DOI: 10.3171/2018.4.jns173121.Peer-Reviewed Original ResearchBasilar artery occlusionIschemic lesion volumeInfused mesenchymal stem cellsIntravenous infusionMesenchymal stem cellsLesion volumeBrainstem infarctionMSC infusionFunctional recoveryIntravenous MSC infusionIschemic brainstem lesionsPosterior circulation strokeAcute stroke therapyArtery occlusion modelGroup 28 daysNylon monofilament sutureReliable animal modelMultiple behavioral testsStem cellsProximal BAArtery occlusionBrainstem lesionsPosterior circulationStroke therapyFunctional outcome
2012
Assessing variability in neurointerventional practice patterns for acute ischemic stroke
Mehta B, Leslie-Mazwi T, Chandra R, Chaudhry Z, Rabinov J, Hirsch J, Schwamm L, Rost N, Yoo A. Assessing variability in neurointerventional practice patterns for acute ischemic stroke. Journal Of NeuroInterventional Surgery 2012, 5: i52. PMID: 23235960, DOI: 10.1136/neurintsurg-2012-010565.Peer-Reviewed Original ResearchConceptsIntra-arterial therapyPractice patternsHealth Stroke Scale scoreIntravenous tissue plasminogen activatorReal-world practice patternsEvidence-based practice guidelinesComprehensive stroke servicesPosterior circulation strokeStroke Scale scoreAcute ischemic strokeAnterior circulation strokeFirst-line therapyLarge vessel occlusionMedian annual volumeTissue plasminogen activatorAcute strokeIschemic strokeIndependent predictorsSymptom onsetConscious sedationStroke servicesTreatment indicationsVessel occlusionTreatment strategiesPractice guidelines
2008
CT Angiography-Source Image Hypoattenuation Predicts Clinical Outcome in Posterior Circulation Strokes Treated With Intra-Arterial Therapy
Schaefer P, Yoo A, Bell D, Barak E, Romero J, Nogueira R, Lev M, Schwamm L, Gonzalez R, Hirsch J. CT Angiography-Source Image Hypoattenuation Predicts Clinical Outcome in Posterior Circulation Strokes Treated With Intra-Arterial Therapy. Stroke 2008, 39: 3107-3109. PMID: 18703807, DOI: 10.1161/strokeaha.108.517680.Peer-Reviewed Original ResearchConceptsIntra-arterial thrombolysisVertebrobasilar occlusionClinical outcomesParenchymal hypoattenuationRankin scorePosterior circulation strokeHealth Stroke ScaleIntra-arterial therapyOnly independent predictorIndependent outcome predictorsMedial temporal lobeInferior parietal lobeStroke ScaleClot locationPatient ageCTA-SIIndependent predictorsOutcome predictorsOccipital lobeHypoattenuationTemporal lobeThrombolysisParietal lobePatientsMidbrain
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