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
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
1996
Hyperacute stroke: evaluation with combined multisection diffusion-weighted and hemodynamically weighted echo-planar MR imaging.
Sorensen A, Buonanno F, Gonzalez R, Schwamm L, Lev M, Huang-Hellinger F, Reese T, Weisskoff R, Davis T, Suwanwela N, Can U, Moreira J, Copen W, Look R, Finklestein S, Rosen B, Koroshetz W. Hyperacute stroke: evaluation with combined multisection diffusion-weighted and hemodynamically weighted echo-planar MR imaging. Radiology 1996, 199: 391-401. PMID: 8668784, DOI: 10.1148/radiology.199.2.8668784.Peer-Reviewed Original ResearchConceptsInfarct volumeNormal findingsHyperacute cerebral ischemiaMagnetic resonance imagingEcho-planar MR imagingAcute hemiparesisAcute strokeCerebral ischemiaInitial CTMR imaging techniquesStroke diagnosisPatientsResonance imagingSubsequent imagingMR imagingAbnormalitiesConventional MRCTImaging techniquesImagingMRHoursFindingsHemiparesisInfarction