2011
Prediction of Early Stroke Risk in Transient Symptoms With Infarction
Arsava E, Furie K, Schwamm L, Sorensen A, Ay H. Prediction of Early Stroke Risk in Transient Symptoms With Infarction. Stroke 2011, 42: 2186-2190. PMID: 21680907, PMCID: PMC3144273, DOI: 10.1161/strokeaha.110.604280.Peer-Reviewed Original ResearchConceptsTransient ischemic attackReceiver-operating characteristic curveIschemic attackStroke riskTransient symptomsDiffusion-weighted imagesStroke prevention strategiesHigh-risk patientsRisk of strokeEarly stroke riskCharacteristic curveNew infarctionRecurrent strokeClinical deteriorationConsecutive patientsIschemic strokeSymptom onsetIndex lesionRetrospective seriesPrevention strategiesPatientsEarly interventionInfarctionStrokeSubsequent stroke
2009
ABC/2 for rapid clinical estimate of infarct, perfusion, and mismatch volumes
Sims J, Gharai L, Schaefer P, Vangel M, Rosenthal E, Lev M, Schwamm L. ABC/2 for rapid clinical estimate of infarct, perfusion, and mismatch volumes. Neurology 2009, 72: 2104-2110. PMID: 19528517, PMCID: PMC2697964, DOI: 10.1212/wnl.0b013e3181aa5329.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overBrainBrain InfarctionCerebral ArteriesCerebral HemorrhageCerebrovascular CirculationComputer SimulationDiagnosis, DifferentialDiffusion Magnetic Resonance ImagingFemaleHumansImage Processing, Computer-AssistedMaleMiddle AgedNerve Fibers, MyelinatedPredictive Value of TestsRetrospective StudiesSeverity of Illness IndexTime Factors
1999
Diffusion-weighted MR Imaging: Diagnostic Accuracy in Patients Imaged within 6 Hours of Stroke Symptom Onset
González R, Schaefer P, Buonanno F, Schwamm L, Budzik R, Rordorf G, Wang B, Sorensen A, Koroshetz W. Diffusion-weighted MR Imaging: Diagnostic Accuracy in Patients Imaged within 6 Hours of Stroke Symptom Onset. Radiology 1999, 210: 155-62. PMID: 9885601, DOI: 10.1148/radiology.210.1.r99ja02155.Peer-Reviewed Original ResearchConceptsFinal clinical diagnosisDiffusion-weighted imagesDiffusion-weighted MR imagingDiffusion-weighted imagingConventional MR imagingMR imagingSymptom onsetBlinded reviewClinical diagnosisDiagnostic accuracyStroke symptom onsetDiffusion-weighted magnetic resonance imagingMagnetic resonance imagingT2-weighted MR imagingAcute strokeStroke symptomsFinal diagnosisTomographic scanStrokelike symptomsPatientsPatient recordsResonance imagingStrokeDiagnosisCT
1997
Diffusion-weighted imaging discriminates between cytotoxic and vasogenic edema in a patient with eclampsia.
Schaefer P, Buonanno F, Gonzalez R, Schwamm L. Diffusion-weighted imaging discriminates between cytotoxic and vasogenic edema in a patient with eclampsia. Stroke 1997, 28: 1082-5. PMID: 9158653, DOI: 10.1161/01.str.28.5.1082.Peer-Reviewed Original ResearchConceptsT2 hyperintense signal abnormalityDiffusion-weighted imagingHyperintense signal abnormalitiesVasogenic edemaSignal abnormalitiesRoutine MRIMajority of patientsPermanent neurological impairmentReversible neurological deficitsSubcortical white matterAdjacent gray matterDifferent treatment protocolsPathophysiology of eclampsiaEcho-planar diffusion-weighted imagingEclamptic patientsIschemic encephalopathyNeurological deficitsPosterior predominancePatient groupDiffusion-weighted imagesCytotoxic edemaNeurological impairmentPremature twinsTreatment protocolEdema