2025
Detectability of acute ischemic stroke with thin (3 mm) axial versus thin (3 mm) coronal diffusion-weighted imaging in patients presenting to the emergency department with acute dizziness
Lozano R, Shareef F, Neupane A, Siddique Z, Joshi R, Pasquini L, Tu L, Mahajan A. Detectability of acute ischemic stroke with thin (3 mm) axial versus thin (3 mm) coronal diffusion-weighted imaging in patients presenting to the emergency department with acute dizziness. Emergency Radiology 2025, 1-7. PMID: 40053160, DOI: 10.1007/s10140-025-02327-4.Peer-Reviewed Original ResearchAxial DWIIschemic lesionsMRI examinationsDetection of brain ischemiaEmergency departmentIschemic strokeMiddle cerebellar peduncleRetrospective cohort studyDiffusion-weighted imagingAcute ischemic strokeDetection of acute ischemic strokeDetection of ischemiaMethodsRetrospective studyPosterior circulationAxial MRIDWI sequencesAcute dizzinessCerebellar pedunclePurposeIschemic strokeCoronal sequencesCohort studyDiagnostic utilityMRI protocolMcNemar testBrain ischemia
2024
A Surgical Protocol for Establishing Spinal Cord Ischemia with Extended Lifespan and Low Complication Rates in Rats
Yasuda N, Sasaki M, Kocsis J, Kawaharada N, Honmou O. A Surgical Protocol for Establishing Spinal Cord Ischemia with Extended Lifespan and Low Complication Rates in Rats. World Neurosurgery 2024, 188: e349-e356. PMID: 38789035, DOI: 10.1016/j.wneu.2024.05.114.Peer-Reviewed Original ResearchIschemic spinal cord injurySpinal cord ischemiaCord ischemiaComplication rateRat modelTherapeutic strategiesEvaluate new therapeutic strategiesFunctional recoveryMale Sprague-Dawley ratsLow complication rateSprague-Dawley ratsSpecialized surgical equipmentExperimental animal modelsImprove functional recoveryPromote functional recoverySpinal cord injuryCross-clampingSevere neurological disordersAzygos veinSurgical protocolDescending aortaBulldog clampsLumbar levelsSpinal cordIschemic lesions
2023
ABO-Incompatible Platelet Transfusion Is Associated with Ischemic Lesions on Brain MRI in Patients with Intracerebral Hemorrhage
Poyraz F, Ridha M, Simonetto M, Kumar A, Hess E, Magid-Bernstein J, Connolly E, Ghoshal S, Agarwal S, Park S, Claassen J, Hod E, Roh D. ABO-Incompatible Platelet Transfusion Is Associated with Ischemic Lesions on Brain MRI in Patients with Intracerebral Hemorrhage. Blood 2023, 142: 1288. DOI: 10.1182/blood-2023-186171.Peer-Reviewed Original ResearchABO-incompatible platelet transfusionsAcute ischemic brain lesionsIschemic brain lesionsIschemic lesionsPlatelet transfusionsICH patientsBrain MRIPlatelet unitsICH hospitalizationsICH severityBrain lesionsICH symptom onsetIncompatible platelet transfusionsProspective cohort studyAcute ischemic lesionsSpontaneous ICH patientsIntracerebral hemorrhage outcomesConsecutive spontaneous ICH patientsPatient's blood typeCerebral microthrombosisCohort studySymptom onsetRegression modelsClinical outcomesImpaired hemostasisAnalysis of brain edema in RHAPSODY
Schleicher R, Vorasayan P, McCabe M, Bevers M, Davis T, Griffin J, Hinduja A, Jadhav A, Lee J, Sawyer R, Zlokovic B, Sheth K, Fedler J, Lyden P, Kimberly W, Investigators O. Analysis of brain edema in RHAPSODY. International Journal Of Stroke 2023, 19: 68-75. PMID: 37382409, PMCID: PMC10789908, DOI: 10.1177/17474930231187268.Peer-Reviewed Original ResearchConceptsNet water uptakeMidline shiftCerebral edemaMarkers of edemaImaging markerClinical outcomesBrain magnetic resonance imaging (MRI) scansMass effectMagnetic resonance imaging (MRI) scansSupratentorial ischemic lesionsAcute ischemic strokeBaseline stroke volumeProtein C treatmentResonance imaging scansCerebrospinal fluid volumeTime courseIschemic strokeBaseline visitIschemic lesionsTrial cohortBrain edemaTreatment armsSecondary complicationsFuture trialsImaging scansA 1-Tesla MRI system for dedicated brain imaging in the neonatal intensive care unit
Berson E, Mozayan A, Peterec S, Taylor S, Bamford N, Ment L, Rowe E, Lisse S, Ehrlich L, Silva C, Goodman T, Payabvash S. A 1-Tesla MRI system for dedicated brain imaging in the neonatal intensive care unit. Frontiers In Neuroscience 2023, 17: 1132173. PMID: 36845429, PMCID: PMC9951115, DOI: 10.3389/fnins.2023.1132173.Peer-Reviewed Original ResearchNeonatal intensive care unitIntensive care unitIntraventricular hemorrhageCare unitHypoxic injuryIntracranial pathologyAverage gestational ageParenchymal injuryPreterm neonatesCommon indicationIschemic lesionsNICU patientsGestational ageClinical findingsPatient weightInfantsTranscranial ultrasoundMRIInjuryCareMicrohemorrhagesScansLesionsFollowPathology
2022
Brain injury patterns in hypoxic ischemic encephalopathy of term neonates
Bobba PS, Malhotra A, Sheth KN, Taylor SN, Ment LR, Payabvash S. Brain injury patterns in hypoxic ischemic encephalopathy of term neonates. Journal Of Neuroimaging 2022, 33: 79-84. PMID: 36164277, DOI: 10.1111/jon.13052.Peer-Reviewed Original ResearchConceptsSevere hypoxic-ischemic encephalopathyHypoxic-ischemic encephalopathyHypoxic-ischemic lesionsSeverity of HIEModerate hypoxic-ischemic encephalopathyTerm neonatesIschemic lesionsDiffusion-weighted imagingBasal gangliaDiagnosis of HIESeverity categoriesBrain injury patternsDeep white matterMRI diffusion-weighted imagingT2-weighted imagesPresence of lesionsVoxel-wise analysisRespiration (APGAR) scoreInfarct volumeStandard brain spaceIschemic encephalopathyInjury patternsBrain injuryLentiform nucleusLesion volume
2021
A randomized evaluation of the TriGuard™ HDH cerebral embolic protection device to Reduce the Impact of Cerebral Embolic LEsions after TransCatheter Aortic Valve ImplanTation: the REFLECT I trial
Lansky AJ, Makkar R, Nazif T, Messé S, Forrest J, Sharma R, Schofer J, Linke A, Brown D, Dhoble A, Horwitz P, Zang M, DeMarco F, Rajagopal V, Dwyer MG, Zivadinov R, Stella P, Rovin J, Parise H, Kodali S, Baumbach A, Moses J. A randomized evaluation of the TriGuard™ HDH cerebral embolic protection device to Reduce the Impact of Cerebral Embolic LEsions after TransCatheter Aortic Valve ImplanTation: the REFLECT I trial. European Heart Journal 2021, 42: 2670-2679. PMID: 34000004, DOI: 10.1093/eurheartj/ehab213.Peer-Reviewed Original ResearchConceptsTranscatheter aortic valve replacementEfficacy endpointCerebral embolic protection devicesTranscatheter aortic valve implantationCentral nervous system injuryCerebral embolic lesionsCerebral ischemic lesionsHealth Stroke ScalePrimary efficacy endpointPrimary safety outcomeAortic valve replacementAortic valve implantationEmbolic protection devicesNervous system injuryDiffusion-weighted magnetic resonanceMontreal Cognitive AssessmentEffectiveness endpointCause mortalityCerebral protectionSafety endpointStroke ScaleValve implantationValve replacementI trialIschemic lesionsFocal brainstem infarction in the adult rat
Namioka A, Namioka T, Sasaki M, Kocsis JD, Honmou O. Focal brainstem infarction in the adult rat. Lab Animal 2021, 50: 97-107. PMID: 33564191, DOI: 10.1038/s41684-021-00722-1.Peer-Reviewed Original ResearchConceptsBrainstem ischemiaNew therapeutic approachesIschemic lesionsFunctional recoveryTherapeutic approachesAnimal modelsFemale Sprague-Dawley ratsBrainstem ischemic lesionsLower basilar arteryArtery occlusion modelIschemic lesion volumeType of strokeReliable animal modelSprague-Dawley ratsBrainstem infarctionExtended observation periodNeurological deficitsBasilar arteryLesion volumeOcclusion modelAdult ratsIschemiaPresent symptomsSurvival rateHigher survival rateDiffusion-Weighted Imaging Lesions After Intracerebral Hemorrhage and Risk of Stroke
Murthy SB, Zhang C, Gupta A, Cho SM, Rivera-Lara L, Avadhani R, Gruber J, Iadecola C, Falcone GJ, Sheth KN, Qureshi AI, Goldstein JN, Hanley DF, Kamel H, Ziai WC. Diffusion-Weighted Imaging Lesions After Intracerebral Hemorrhage and Risk of Stroke. Stroke 2021, 52: 595-602. PMID: 33467877, PMCID: PMC8340082, DOI: 10.1161/strokeaha.120.031628.Peer-Reviewed Original ResearchConceptsRecurrent intracerebral hemorrhageRisk of strokeIntracerebral hemorrhageDWI lesionsIschemic strokeDiffusion-weighted imagingDiffusion-weighted imaging lesionsMultivariate Cox regression analysisMISTIE III trialIncident ischemic strokeCox regression analysisPoor functional outcomeCox regression modelIndividual patient dataATACH-2 trialLong-term riskMagnetic resonance imagingICH survivorsIncident strokeIII trialsImaging lesionsSecondary outcomesIschemic lesionsPrimary outcomeFunctional outcome
2017
Reduced Cerebrovascular Reactivity and Increased Resting Cerebral Perfusion in Rats Exposed to a Cafeteria Diet
Gomez-Smith M, Janik R, Adams C, Lake EM, Thomason LAM, Jeffers MS, Stefanovic B, Corbett D. Reduced Cerebrovascular Reactivity and Increased Resting Cerebral Perfusion in Rats Exposed to a Cafeteria Diet. Neuroscience 2017, 371: 166-177. PMID: 29229555, DOI: 10.1016/j.neuroscience.2017.11.054.Peer-Reviewed Original ResearchConceptsRat endothelial cell antigen-1Cerebrovascular reactivityCafeteria dietMagnetic resonance imagingCerebral perfusionStandard chowAnimals fed standard chowEndothelial cell antigen-1Arterial spin labeling magnetic resonance imagingContinuous arterial spin labeling (CASL) magnetic resonance imagingEndothelin-1 injectionReduced Cerebrovascular ReactivityUltra-processed dietFed standard chowSprague-Dawley ratsShort-term consumptionCell antigen-1CAF ratsCerebrovascular functionIschemic lesionsCerebral microvasculatureDiet ratsSensorimotor cortexBrain perfusionDawley rats
2016
Neurologic Complications of Unprotected Transcatheter Aortic Valve Implantation (from the Neuro-TAVI Trial)
Lansky AJ, Brown D, Pena C, Pietras CG, Parise H, Ng VG, Meller S, Abrams KJ, Cleman M, Margolis P, Petrossian G, Brickman AM, Voros S, Moses J, Forrest JK. Neurologic Complications of Unprotected Transcatheter Aortic Valve Implantation (from the Neuro-TAVI Trial). The American Journal Of Cardiology 2016, 118: 1519-1526. PMID: 27645761, DOI: 10.1016/j.amjcard.2016.08.013.Peer-Reviewed Original ResearchMeSH KeywordsAged, 80 and overAortic ValveAortic Valve StenosisBrainBrain IschemiaDiffusion Magnetic Resonance ImagingFemaleFollow-Up StudiesHumansIncidenceIntracranial EmbolismMalePostoperative ComplicationsPrognosisProspective StudiesRisk AssessmentRisk FactorsSurvival RateTranscatheter Aortic Valve ReplacementUnited StatesConceptsTranscatheter aortic valve implantationAortic valve implantationNeurologic injuryValve implantationNeurologic impairmentMagnetic resonance imaging lesionsCognitive AssessmentMontreal Cognitive Assessment scoreCerebral ischemic lesionsNew neurologic impairmentSubclinical cerebral infarctsDiffusion-weighted magnetic resonance imagingTotal lesion volumeCognitive Assessment scoreMontreal Cognitive AssessmentMagnetic resonance imagingCerebral embolizationCerebral infarctsNeurologic complicationsCerebral infarctionImaging lesionsMost patientsOvert strokeConsecutive patientsIschemic lesions
2015
The Effects of Delayed Reduction of Tonic Inhibition on Ischemic Lesion and Sensorimotor Function
Lake E, Chaudhuri J, Thomason L, Janik R, Ganguly M, Brown M, McLaurin J, Corbett D, Stanisz GJ, Stefanovic B. The Effects of Delayed Reduction of Tonic Inhibition on Ischemic Lesion and Sensorimotor Function. Cerebrovascular And Brain Metabolism Reviews 2015, 35: 1601-1609. PMID: 25966952, PMCID: PMC4640317, DOI: 10.1038/jcbfm.2015.86.Peer-Reviewed Original ResearchConceptsIschemic lesionsFocal ischemiaEndothelin-1Rat modelMontoya staircase testWeeks of treatmentTotal stroke volumeCortical microinjectionsIschemic strokeChronic stageSensorimotor deficitsStroke recoveryTonic inhibitionSensorimotor functionStroke volumeGABAA antagonismGABA antagonismStaircase testPerilesional regionsDelayed reductionInverse agonistNecrotic coreBrain structuresBeneficial effectsStrokeSafety and performance of a novel embolic deflection device in patients undergoing transcatheter aortic valve replacement: results from the DEFLECT I study.
Baumbach A, Mullen M, Brickman AM, Aggarwal SK, Pietras CG, Forrest JK, Hildick-Smith D, Meller SM, Gambone L, den Heijer P, Margolis P, Voros S, Lansky AJ. Safety and performance of a novel embolic deflection device in patients undergoing transcatheter aortic valve replacement: results from the DEFLECT I study. EuroIntervention 2015, 11: 75-84. PMID: 25868876, DOI: 10.4244/eijy15m04_01.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAlloysAortic ValveAortic Valve StenosisBrain IschemiaBrazilCardiac CatheterizationCognitionCognition DisordersDiffusion Magnetic Resonance ImagingEmbolic Protection DevicesEuropeFemaleHeart Valve ProsthesisHeart Valve Prosthesis ImplantationHumansIntracranial EmbolismMalePredictive Value of TestsProspective StudiesProsthesis DesignRisk FactorsSeverity of Illness IndexStrokeTime FactorsTreatment OutcomeUltrasonography, Doppler, TranscranialConceptsTranscatheter aortic valve replacementAortic valve replacementValve replacementNew cerebral ischemic lesionsCerebral diffusion-weighted magnetic resonance imagingCerebral ischemic lesionsDays post procedurePrimary safety endpointDiffusion-weighted magnetic resonance imagingMajor cerebral arteriesTotal lesion volumeMagnetic resonance imagingSafety endpointIschemic lesionsTAVR proceduresCerebral arteryCerebral circulationConsecutive subjectsPost procedureAortic archHistorical controlsLesion volumeResonance imagingDW-MRIPatients
2011
Home Time Is Extended in Patients With Ischemic Stroke Who Receive Thrombolytic Therapy
Mishra NK, Shuaib A, Lyden P, Diener HC, Grotta J, Davis S, Davalos A, Ashwood T, Wasiewski W, Lees KR. Home Time Is Extended in Patients With Ischemic Stroke Who Receive Thrombolytic Therapy. Stroke 2011, 42: 1046-1050. PMID: 21350199, DOI: 10.1161/strokeaha.110.601302.Peer-Reviewed Original ResearchConceptsHealth Stroke ScaleBaseline National InstitutesPresence of diabetesAcute stroke trialsStroke ScaleRankin ScaleBarthel IndexStroke trialsNational InstituteDay 90Use of alteplaseHome timeCountry of enrollmentLevel of consciousnessAlteplase useIschemic strokeStroke onsetIschemic lesionsThrombolytic therapyPatient enrollmentBaseline severityOrdinal logistic regressionTreatment responsivenessOutcome measuresAnalysis of covariance
2002
Transplantation of human neural stem cells into the stroke model
Honmou O, Oka S, Sasaki M, Takahashi A, Tanooka A, Houkin K, Hashi K. Transplantation of human neural stem cells into the stroke model. Nosotchu 2002, 24: 355. DOI: 10.3995/jstroke.24.355.Peer-Reviewed Original ResearchHuman neural stem cellsNeural stem cellsStroke modelNeural stem cell transplantationStem cellsStem cell transplantationAdult mammalian brainExperimental animal modelsPossible therapeutic strategiesNeural productionIschemic lesionsIschemic volumeCell transplantationHistological examinationAdult brainTherapeutic strategiesAnimal modelsTransplantationGlial lineagesMammalian brainCell therapyFunctional benefitsMultipotential propertiesPresent reportStroke
2001
Unilateral Temporal Lobe Stroke Causing Ischemic Transient Global Amnesia: Role for Diffusion‐Weighted Imaging in the Initial Evaluation
Greer D, Schaefer P, Schwamm L. Unilateral Temporal Lobe Stroke Causing Ischemic Transient Global Amnesia: Role for Diffusion‐Weighted Imaging in the Initial Evaluation. Journal Of Neuroimaging 2001, 11: 317-319. PMID: 11462302, DOI: 10.1111/j.1552-6569.2001.tb00054.x.Peer-Reviewed Original ResearchConceptsTransient global amnesiaDiffusion-weighted imagingInitial diffusion-weighted imagingLeft mesial temporal lobeSmall ischemic lesionsApparent diffusion coefficient imagingMesial temporal lobeOnset of symptomsT2-weighted imagingIschemic infarctIschemic lesionsAcute infarctsGlobal amnesiaTemporal lobeInitial evaluationEarly detectionInfarctsLesionsSymptomsImagingMagnetic resonanceDaysIschemiaEmboliPatients
1999
Diffusion- and Perfusion-Weighted Imaging in Vasospasm After Subarachnoid Hemorrhage
Rordorf G, Koroshetz W, Copen W, Gonzalez G, Yamada K, Schaefer P, Schwamm L, Ogilvy C, Sorensen A. Diffusion- and Perfusion-Weighted Imaging in Vasospasm After Subarachnoid Hemorrhage. Stroke 1999, 30: 599-605. PMID: 10066858, DOI: 10.1161/01.str.30.3.599.Peer-Reviewed Original ResearchConceptsRelative cerebral blood flowRelative cerebral blood volumeAngiographic vasospasmIschemic injurySymptomatic vasospasmNeurological deficitsClinical signsSevere angiographic vasospasmCerebral tissue perfusionEarly ischemic injurySubarachnoid hemorrhage patientsCerebral blood flowIntravenous contrast bolusPerfusion-Weighted ImagingCerebral blood volumeDWI abnormalitiesAsymptomatic patientsHemodynamic abnormalitiesNormal angiogramsAngiographic spasmImaging abnormalitiesIschemic lesionsHemorrhage patientsSubarachnoid hemorrhageClinical management
1997
Progression of a focal ischemic lesion in rat brain during treatment with a novel glycine/nmda antagonist: An in vivo three‐dimensional diffusion‐weighted MR microscopy study
Qiu H, Hedlund L, Gewalt S, Benveniste H, Bare T, Johnson G. Progression of a focal ischemic lesion in rat brain during treatment with a novel glycine/nmda antagonist: An in vivo three‐dimensional diffusion‐weighted MR microscopy study. Journal Of Magnetic Resonance Imaging 1997, 7: 739-744. PMID: 9243396, DOI: 10.1002/jmri.1880070421.Peer-Reviewed Original ResearchConceptsMiddle cerebral arteryStroke volumeIpsilateral common carotid arteryReduced stroke volumeFocal ischemic lesionsCommon carotid arteryGlycine/NMDA antagonistsMCA occlusionCerebral arteryIschemic lesionsMultiple time pointsNMDA antagonistsCarotid arteryDrug treatmentRat brainGroup 2Group 1Control groupVivo studiesTime pointsZD9379ArteryOcclusionHoursTreatment
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