2012
Derivation of Transcranial Doppler Criteria for Angiographically Proven Middle Cerebral Artery Vasospasm after Aneurysmal Subarachnoid Hemorrhage
Sebastian J, Derksen C, Khan K, Ibrahim M, Hameed B, Siddiqui M, Chow M, Findlay JM, Shuaib A, Saqqur M. Derivation of Transcranial Doppler Criteria for Angiographically Proven Middle Cerebral Artery Vasospasm after Aneurysmal Subarachnoid Hemorrhage. Journal Of Neuroimaging 2012, 23: 489-494. PMID: 23163812, DOI: 10.1111/j.1552-6569.2012.00771.x.Peer-Reviewed Original ResearchMeSH KeywordsAdultAlbertaCausalityCerebral AngiographyComorbidityFeasibility StudiesFemaleHumansInfarction, Middle Cerebral ArteryMaleMiddle AgedPrognosisReproducibility of ResultsRisk FactorsSensitivity and SpecificitySubarachnoid HemorrhageUltrasonography, Doppler, TranscranialVasospasm, IntracranialConceptsAneurysmal subarachnoid hemorrhageMiddle cerebral artery vasospasmCerebral artery vasospasmCerebral angiographyTranscranial DopplerArtery vasospasmSubarachnoid hemorrhageMCA mean flow velocityTCD mean flow velocityStepwise logistic regression analysisLogistic regression analysisTranscranial Doppler criteriaASAH populationSevere vasospasmSymptom onsetLuminal narrowingMean ageProspective dataVasospasmMean flow velocityDoppler criteriaDay 2Day 7Study aimPatients
2010
Low Cerebral Blood Volume Is Predictive of Diffusion Restriction Only in Hyperacute Stroke
Knash M, Tsang A, Hameed B, Saini M, Jeerakathil T, Beaulieu C, Emery D, Butcher K. Low Cerebral Blood Volume Is Predictive of Diffusion Restriction Only in Hyperacute Stroke. Stroke 2010, 41: 2795-2800. PMID: 21051672, DOI: 10.1161/strokeaha.110.590554.Peer-Reviewed Original ResearchConceptsCerebral blood volumeRelative cerebral blood volumeLow cerebral blood volumeDWI lesion volumeIschemic tissue volumeDiffusion-weighted MRIDWI lesionsSymptom onsetApparent diffusion coefficientDiffusion abnormalitiesLesion volumeContralateral regionsBlood volumeDiffusion restrictionNormal tissuesCerebral blood flowRelative apparent diffusion coefficientTissue volumePerfusion-weighted imagingAcute strokeIschemic strokeMinor strokeSymptom durationEarly reperfusionMild stroke