2014
Exposing Hidden Truncation-Related Errors in Acute Stroke Perfusion Imaging
Copen W, Deipolyi A, Schaefer P, Schwamm L, González R, Wu O. Exposing Hidden Truncation-Related Errors in Acute Stroke Perfusion Imaging. American Journal Of Neuroradiology 2014, 36: 638-645. PMID: 25500309, PMCID: PMC7964314, DOI: 10.3174/ajnr.a4186.Peer-Reviewed Original ResearchConceptsPerfusion scanVolume of lesionsScan durationSymptom onsetAcute infarctsHemodynamic measurementsLesion reversalClinical trialsLesion volumePatient managementPerfusion MRPerfusion imagingInjected contrast agentPerfusion imagesPatient CTLesionsDurationMTTCTLong scan durationScansContrast agentsShort scan durationTmaxPerfusion estimates
2008
Clinical- and Imaging-Based Prediction of Stroke Risk After Transient Ischemic Attack
Ay H, Arsava E, Johnston S, Vangel M, Schwamm L, Furie K, Koroshetz W, Sorensen A. Clinical- and Imaging-Based Prediction of Stroke Risk After Transient Ischemic Attack. Stroke 2008, 40: 181-186. PMID: 18948609, DOI: 10.1161/strokeaha.108.521476.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overBrainComorbidityComputer SimulationDiffusion Magnetic Resonance ImagingDisease ProgressionEarly DiagnosisEmergency Medical ServicesFemaleHumansIncidenceIschemic Attack, TransientLogistic ModelsMaleMiddle AgedNeurologic ExaminationPredictive Value of TestsPrognosisReproducibility of ResultsRisk FactorsStrokeConceptsTransient ischemic attackIschemic attackStroke riskClinical featuresDiffusion-weighted imagingAcute infarctsClinical transient ischemic attackDiffusion-weighted imaging findingsEarly stroke riskRelevant clinical settingsCharacteristic curveLogistic regression modelsConsecutive patientsSymptom onsetIndependent predictorsRisk stratificationImaging findingsTherapeutic measuresHospital resourcesEarly riskClinical settingResponse criteriaPredictive instrumentStrokeSubsequent stroke
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