Diffusion- and Perfusion-Weighted Imaging in Vasospasm After Subarachnoid Hemorrhage
Rordorf G, Koroshetz W, Copen W, Gonzalez G, Yamada K, Schaefer P, Schwamm L, Ogilvy C, Sorensen A. Diffusion- and Perfusion-Weighted Imaging in Vasospasm After Subarachnoid Hemorrhage. Stroke 1999, 30: 599-605. PMID: 10066858, DOI: 10.1161/01.str.30.3.599.Peer-Reviewed Original ResearchConceptsRelative cerebral blood flowRelative cerebral blood volumeAngiographic vasospasmIschemic injurySymptomatic vasospasmNeurological deficitsClinical signsSevere angiographic vasospasmCerebral tissue perfusionEarly ischemic injurySubarachnoid hemorrhage patientsCerebral blood flowIntravenous contrast bolusPerfusion-Weighted ImagingCerebral blood volumeDWI abnormalitiesAsymptomatic patientsHemodynamic abnormalitiesNormal angiogramsAngiographic spasmImaging abnormalitiesIschemic lesionsHemorrhage patientsSubarachnoid hemorrhageClinical managementHyperacute Stroke: Simultaneous Measurement of Relative Cerebral Blood Volume, Relative Cerebral Blood Flow, and Mean Tissue Transit Time
Sorensen A, Copen W, Ostergaard L, Buonanno F, Gonzalez R, Rordorf G, Rosen B, Schwamm L, Weisskoff R, Koroshetz W. Hyperacute Stroke: Simultaneous Measurement of Relative Cerebral Blood Volume, Relative Cerebral Blood Flow, and Mean Tissue Transit Time. Radiology 1999, 210: 519-27. PMID: 10207439, DOI: 10.1148/radiology.210.2.r99fe06519.Peer-Reviewed Original ResearchConceptsRelative cerebral blood flowCerebral blood flowRelative cerebral blood volumeCerebral blood volumeBlood flowBlood volumeTissue transit timeLesion volumeMR imagingDiffusion findingsAcute lesion volumesCompensatory hemodynamic responseHemodynamic MR imagingCerebral ischemic strokeOnset of symptomsInitial blood flowAltered blood flowBlood volume mapsFunctional magnetic resonance imagingMagnetic resonance imagingTransit time mapsBlood flow mapsInitial blood volumeInfarct volumeHemodynamic abnormalities