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 ResearchConceptsDiffusion-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 cohortDeviation From Personalized Blood Pressure Targets Correlates With Worse Outcome After Successful Recanalization
Zhang Z, Pu Y, Yu L, Bai H, Duan W, Liu X, Nie X, Wen Z, Zheng L, Hu X, Leng X, Pan Y, Petersen N, Liu L. Deviation From Personalized Blood Pressure Targets Correlates With Worse Outcome After Successful Recanalization. Journal Of The American Heart Association 2024, 13: e033633. PMID: 38533955, PMCID: PMC11179781, DOI: 10.1161/jaha.123.033633.Peer-Reviewed Original ResearchConceptsBlood pressure targetsBlood pressureAutoregulatory limitsWorse outcomesAssociated with symptomatic intracranial hemorrhageAssociated with unfavorable clinical outcomesPressure targetsAssociated with worse outcomesAssociated with poor outcomesSignificant infarction growthSymptomatic intracranial hemorrhageUnfavorable clinical outcomeLarge vessel occlusion strokeAcute ischemic strokeMean velocity indexIntracranial hemorrhageBP management strategiesNeurological deteriorationClinical outcomesInfarct growthPoor outcomeEndovascular thrombectomyOcclusion strokeRecanalizationIschemic stroke
2023
Detection of Intracerebral Hemorrhage Using Low-Field, Portable Magnetic Resonance Imaging in Patients With Stroke
Mazurek M, Parasuram N, Peng T, Beekman R, Yadlapalli V, Sorby-Adams A, Lalwani D, Zabinska J, Gilmore E, Petersen N, Falcone G, Sujijantarat N, Matouk C, Payabvash S, Sze G, Schiff S, Iglesias J, Rosen M, de Havenon A, Kimberly W, Sheth K. Detection of Intracerebral Hemorrhage Using Low-Field, Portable Magnetic Resonance Imaging in Patients With Stroke. Stroke 2023, 54: 2832-2841. PMID: 37795593, PMCID: PMC11103256, DOI: 10.1161/strokeaha.123.043146.Peer-Reviewed Original ResearchImaging biomarkers of cerebral edema automatically extracted from routine CT scans of large vessel occlusion strokes
Dhar R, Kumar A, Chen Y, Begunova Y, Olexa M, Prasad A, Carey G, Gonzalez I, Bhatia K, Hamed M, Heitsch L, Mainali S, Petersen N, Lee J. Imaging biomarkers of cerebral edema automatically extracted from routine CT scans of large vessel occlusion strokes. Journal Of Neuroimaging 2023, 33: 606-616. PMID: 37095592, PMCID: PMC10524672, DOI: 10.1111/jon.13109.Peer-Reviewed Original ResearchConceptsLarge vessel occlusion strokeMidline shiftCSF ratioMalignant edemaCerebral edemaOcclusion strokeCerebrospinal fluidAlberta Stroke Program Early CT ScoreCSF volumeTissue plasminogen activator treatmentHealth Stroke ScalePlasminogen activator treatmentRoutine CT scansNet water uptakeDecompressive surgeryInfarct volumeStroke ScaleOsmotic therapyBaseline CTCT scoreHemispheric volumeRoutine CTSerial CTContralateral regionsCT scan