2017
Multi-Materials Decomposition using clinical Dualenergy CT
Zhao T, Kim K, Wu D, Kalra M, Fakhri G, Li Q. Multi-Materials Decomposition using clinical Dualenergy CT. 2017, 00: 1-4. DOI: 10.1109/nssmic.2017.8532936.Peer-Reviewed Original ResearchAttenuation coefficient functionDecomposition methodMulti-materials decomposition methodDomain decompositionMulti-materialAttenuation coefficientMaterial informationScanned objectX-ray sourcesMaterialsX-rayMedical applicationsEffective attenuation coefficientCoefficient functionsDecompositionMulti-material decompositionCoefficientDensity-based clustering
2014
Spectral CT Using Multiple Balanced K-Edge Filters
Rakvongthai Y, Worstell W, Fakhri G, Bian J, Lorsakul A, Ouyang J. Spectral CT Using Multiple Balanced K-Edge Filters. IEEE Transactions On Medical Imaging 2014, 34: 740-747. PMID: 25252276, PMCID: PMC4349342, DOI: 10.1109/tmi.2014.2358561.Peer-Reviewed Original ResearchConceptsK-edge filtersReconstructed attenuation coefficientsEnergy binsAttenuation coefficientMultiple energy binsX-ray sourcesX-ray tubeBack-projection reconstructionSpectral CT imagingTransmission matrixModel expectationsSinogram binsBeam hardeningComplex phantomsSpectral computed tomographyK-edgeAttenuation imagesSpectral CTCT scannerX-rayConventional detectorsBack-projectionSinogramPhantomCost-effective system design