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 cohort
2023
Low‐Field Portable Magnetic Resonance Imaging for Post‐Thrombectomy Assessment of Ongoing Brain Injury
Sujijantarat N, Koo A, Jambor I, Malhotra A, Mazurek M, Parasuram N, Yadlapalli V, Chavva I, Lalwani D, Zabinska J, Roy J, Antonios J, Elsamadicy A, Renedo D, Hebert R, Schindler J, Gilmore E, Sansing L, de Havenon A, Olexa M, Schiff S, Iglesias J, Rosen M, Kimberly W, Petersen N, Sheth K, Matouk C. Low‐Field Portable Magnetic Resonance Imaging for Post‐Thrombectomy Assessment of Ongoing Brain Injury. Stroke Vascular And Interventional Neurology 2023, 3 DOI: 10.1161/svin.123.000921.Peer-Reviewed Original ResearchMechanical thrombectomyInterventional radiology suiteMagnetic resonance imagingRadiology suiteConventional MRIResonance imagingCerebral Infarction scoreOngoing brain injuryLarge vessel occlusionInfarct burdenRevascularization timeInfarct volumeClinical characteristicsInfarct progressionAdverse eventsIschemic changesMethods PatientsMedian timeBedside evaluationBrain injuryTimely imagingResults TwentyPatientsSubsequent imagingProcedural details
2022
Stroke Severity and Early Ischemic Changes Predict Infarct Growth Rate and Clinical Outcomes in Patients With Large‐Vessel Occlusion
Quispe‐Orozco D, Sequeiros J, Farooqui M, Zevallos C, Mendez‐Ruiz A, Dajles A, Kobsa J, Prasad A, Petersen N, Ortega‐Gutierrez S. Stroke Severity and Early Ischemic Changes Predict Infarct Growth Rate and Clinical Outcomes in Patients With Large‐Vessel Occlusion. Stroke Vascular And Interventional Neurology 2022, 2 DOI: 10.1161/svin.121.000182.Peer-Reviewed Original ResearchAlberta Stroke Program Early CT ScoreHealth Stroke Scale scoreStroke Scale scoreEarly ischemic changesFast progressorsScale scoreSuccessful reperfusionStroke severityEndovascular therapyIschemic changesClinical outcomesNational InstituteAnterior circulation large vessel occlusion strokeRetrospective cohort observational studyLarge vessel occlusion strokeInfarct growth ratesComprehensive stroke centerHealth Stroke ScaleCohort observational studyFinal infarct volumeLarge vessel occlusionMultivariate logistic regressionIschemic stroke progressionYouden's J indexInfarct progressionImpaired Cerebral Autoregulation Related Blood Pressure Reductions After Nimodipine Are Associated with Ischemic Changes on EEG After Subarachnoid Hemorrhage (P13-10.002)
Top I, Chen Y, Bartolome D, Rapuano A, Gilmore E, Sheth K, Matouk C, Petersen N, Kim J. Impaired Cerebral Autoregulation Related Blood Pressure Reductions After Nimodipine Are Associated with Ischemic Changes on EEG After Subarachnoid Hemorrhage (P13-10.002). Neurology 2022, 98 DOI: 10.1212/wnl.98.18_supplement.3539.Peer-Reviewed Original Research