2022
Potential Impact of SPECT Resolution on Quantification of Left Ventricular Volumes and Ejection Fraction: A Phantom Study
Liu H, Aslan M, Sandoval V, Liu Y. Potential Impact of SPECT Resolution on Quantification of Left Ventricular Volumes and Ejection Fraction: A Phantom Study. Journal Of Medical And Biological Engineering 2022, 42: 734-743. DOI: 10.1007/s40846-022-00747-y.Peer-Reviewed Original ResearchImage resolutionCurrent software toolsDifferent image resolutionsLow resolutionSoftware toolsEmory Cardiac ToolboxPartial volume effectsSoftwareQuantitative softwarePhantom volumeImagesAttenuation correctionSPECT resolutionDedicated cardiac SPECT cameraDual-head SPECTCameraHigh resolutionCardiac phantomQuantification softwareIncreasing angular sampling through deep learning for stationary cardiac SPECT image reconstruction
Xie H, Thorn S, Chen X, Zhou B, Liu H, Liu Z, Lee S, Wang G, Liu YH, Sinusas AJ, Liu C. Increasing angular sampling through deep learning for stationary cardiac SPECT image reconstruction. Journal Of Nuclear Cardiology 2022, 30: 86-100. PMID: 35508796, DOI: 10.1007/s12350-022-02972-z.Peer-Reviewed Original ResearchConceptsDeep learningReconstruction qualityImage reconstructionDeep learning methodsDeep neural networksDeep learning resultsImage qualityNetwork trainingSPECT image reconstructionNeural networkLearning methodsHigh image resolutionImage volumesClinical softwareImage metricsImage resolutionReconstruction resultsImproved image qualityTesting dataLearning resultsNetwork resultsPhysical phantomStationary imagingDifferent subjectsLearning
2016
SPECT Imaging of 2-D and 3-D Distributed Sources with Near-Field Coded Aperture Collimation: Computer Simulation and Real Data Validation
Mu Z, Dobrucki LW, Liu YH. SPECT Imaging of 2-D and 3-D Distributed Sources with Near-Field Coded Aperture Collimation: Computer Simulation and Real Data Validation. Journal Of Medical And Biological Engineering 2016, 36: 32-43. PMID: 27069461, PMCID: PMC4791458, DOI: 10.1007/s40846-016-0111-6.Peer-Reviewed Original ResearchMaximum likelihood expectation maximizationReconstruction approachImage resolutionLarge projection angleIterative image reconstructionNoise artifactsMicro-SPECT systemComputer simulationsReal data validationImage reconstructionDigital phantomExpectation maximizationData validationCA moduleMLEM algorithmImage qualityPinhole imagesProjection angleCommercial softwareImagesPhantom imagesSquared errorSPECT imagesCA imagesImage contrast
2006
Aperture Collimation Correction and Maximum-Likelihood Image Reconstruction for Near-Field Coded Aperture Imaging of Single Photon Emission Computerized Tomography
Mu Z, Liu YH. Aperture Collimation Correction and Maximum-Likelihood Image Reconstruction for Near-Field Coded Aperture Imaging of Single Photon Emission Computerized Tomography. IEEE Transactions On Medical Imaging 2006, 25: 701-711. PMID: 16768235, DOI: 10.1109/tmi.2006.873298.Peer-Reviewed Original ResearchMeSH KeywordsAlgorithmsArtifactsData Interpretation, StatisticalFeasibility StudiesHumansImage EnhancementImage Interpretation, Computer-AssistedImaging, Three-DimensionalInformation Storage and RetrievalLikelihood FunctionsPhantoms, ImagingReproducibility of ResultsSensitivity and SpecificityTomography, Emission-Computed, Single-PhotonConceptsX-ray astronomySingle projectionCA imagesCoded Aperture ImagingMLEM reconstruction algorithmNear-field artifactsCollimation effectMaximum-likelihood image reconstructionSPECT systemParallel-hole collimatorImage reconstruction methodImage resolutionAperture imagingCollimationDeconvolution methodDual acquisitionImage reconstructionCount sensitivityImaging techniquesPhoton emissionPinholesReconstruction algorithm
1998
A novel geometry for SPECT imaging associated with the EM-type blind deconvolution method
Liu Y, Rangarajan A, Gagnon D, Therrien M, Sinusas A, Wackers F, Zubal I. A novel geometry for SPECT imaging associated with the EM-type blind deconvolution method. IEEE Transactions On Nuclear Science 1998, 45: 2095-2101. DOI: 10.1109/23.708310.Peer-Reviewed Original ResearchBlind deconvolution algorithmImage qualityHand dataPhantom dataSPECT projectionsBlind deconvolution methodAperture projectionsDeconvolution algorithmImage resolutionAlgorithmDual-head SPECT systemParallel-hole collimatorDual-head SPECTImaging systemSystemCollimator headHole collimatorSPECT systemRestoration processImagesAperture collimatorNoise ratioCount sensitivityDataQuality
1997
A novel geometry for SPECT imaging associated with the EM-type blind deconvolution method
Liu Y, Rangarajan A, Gagnon D, Therrien M, Sinusas A, Wackers F, Zubal I. A novel geometry for SPECT imaging associated with the EM-type blind deconvolution method. 2011 IEEE Nuclear Science Symposium Conference Record 1997, 2: 1014-1017 vol.2. DOI: 10.1109/nssmic.1997.670482.Peer-Reviewed Original ResearchBlind deconvolution algorithmHigh-resolution projection imagesImage qualitySPECT imaging systemHand dataProjection imagesBlind deconvolution methodDecoding techniquesAperture projectionsImaging systemCamera headDeconvolution algorithmImage resolutionAlgorithmPhantom dataImagesSPECT projectionsParallel-hole collimatorDual-head SPECTHole collimatorSystemCollimator headRestoration processRod phantomAperture collimator