A prospective trial of dynamic contrast-enhanced MRI perfusion and fluorine-18 FDG PET-CT in differentiating brain tumor progression from radiation injury after cranial irradiation
Hatzoglou V, Yang TJ, Omuro A, Gavrilovic I, Ulaner G, Rubel J, Schneider T, Woo KM, Zhang Z, Peck KK, Beal K, Young RJ. A prospective trial of dynamic contrast-enhanced MRI perfusion and fluorine-18 FDG PET-CT in differentiating brain tumor progression from radiation injury after cranial irradiation. Neuro-Oncology 2015, 18: 873-880. PMID: 26688076, PMCID: PMC4864262, DOI: 10.1093/neuonc/nov301.Peer-Reviewed Original ResearchConceptsRadiation injuryPET-CTRadiation therapyProspective trialDCE-MRITumor progressionMaximum standardized uptake valueFluorine-18 fluorodeoxyglucose PET-CTFDG PET-CTDiagnosis of progressionNormal brain ratioFluorodeoxyglucose PET-CTStandardized uptake valueDynamic contrast-enhanced MRIWilcoxon rank sum testContrast-enhanced MRIBrain tumor progressionEffective imaging techniqueVolume transfer coefficientRank sum testCranial irradiationBrain ratioBrain malignanciesLesion outcomeBrain lesionsDiffusion and Perfusion MRI to Differentiate Treatment-Related Changes Including Pseudoprogression from Recurrent Tumors in High-Grade Gliomas with Histopathologic Evidence
Prager A, Martinez N, Beal K, Omuro A, Zhang Z, Young R. Diffusion and Perfusion MRI to Differentiate Treatment-Related Changes Including Pseudoprogression from Recurrent Tumors in High-Grade Gliomas with Histopathologic Evidence. American Journal Of Neuroradiology 2015, 36: 877-885. PMID: 25593202, PMCID: PMC4731220, DOI: 10.3174/ajnr.a4218.Peer-Reviewed Original ResearchConceptsTreatment-related changesRecurrent tumorsHigh-grade gliomasSurgical resectionRecurrent high-grade gliomaLow relative cerebral blood volumeSubanalysis of patientsUtility of DWIRelative cerebral blood volumeTreatment-related effectsCerebral blood volumeWilcoxon rank sum testConventional MR imagingRank sum testConsecutive patientsHistopathologic evidenceMass lesionDSC perfusionRadiation therapyBlood volumeGrade gliomasPatientsLow perfusionTumorsDSC maps