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
2012
Reliability of cerebral blood volume maps as a substitute for diffusion‐weighted imaging in acute ischemic stroke
deIpolyi A, Wu O, Macklin E, Schaefer P, Schwamm L, Gonzalez R, Copen W. Reliability of cerebral blood volume maps as a substitute for diffusion‐weighted imaging in acute ischemic stroke. Journal Of Magnetic Resonance Imaging 2012, 36: 1083-1087. PMID: 22761110, PMCID: PMC4110961, DOI: 10.1002/jmri.23740.Peer-Reviewed Original ResearchConceptsDiffusion-weighted MRIAcute ischemic strokeCerebral blood volume mapsBlood volume mapsCBV mapsDWI lesionsIschemic strokeProportion of lesionsScan durationDiffusion-weighted imagingAcute strokeStroke onsetInfarct coreContralateral hemisphereRegional CBVMR perfusionVolume mapsLesion centerLesionsCBVStrokeShort durationPerfusionDurationLinear regression