2010
Deformable left‐ventricle mesh model for motion‐compensated filtering in cardiac gated SPECT
Marin T, Brankov J. Deformable left‐ventricle mesh model for motion‐compensated filtering in cardiac gated SPECT. Medical Physics 2010, 37: 5471-5481. PMID: 21089783, PMCID: PMC2962663, DOI: 10.1118/1.3483098.Peer-Reviewed Original ResearchMeSH KeywordsAlgorithmsBiophysical PhenomenaCardiac-Gated Single-Photon Emission Computer-Assisted TomographyHeart VentriclesHumansImage Processing, Computer-AssistedModels, CardiovascularMotionPhantoms, ImagingStroke VolumeConceptsCardiac gated SPECTMesh modelNoise reductionMotion-compensated filteringCardiac gated SPECT imagingDeformable mesh modelTested clinical dataSignal-to-noise ratioMotion estimationMotion blurring artifactsEstimated motionImage-reconstruction methodsProcessing algorithmsSpatiotemporal filtering methodSpatiotemporal filteringMotion trajectoryFiltering approachMyocardium motionFiltering methodReduce noiseImage qualityTemporal correlationProcessing techniquesNoisePhoton data
2009
A quantitative evaluation study of four-dimensional gated cardiac SPECT reconstruction
Jin M, Yang Y, Niu X, Marin T, Brankov J, Feng B, Pretorius P, King M, Wernick M. A quantitative evaluation study of four-dimensional gated cardiac SPECT reconstruction. Physics In Medicine And Biology 2009, 54: 5643-5659. PMID: 19724094, PMCID: PMC3690946, DOI: 10.1088/0031-9155/54/18/019.Peer-Reviewed Original ResearchMeSH KeywordsAlgorithmsCardiac-Gated Single-Photon Emission Computer-Assisted TomographyHumansImage EnhancementImage Interpretation, Computer-AssistedImaging, Three-DimensionalPhantoms, ImagingReproducibility of ResultsSensitivity and SpecificityConceptsGated cardiac SPECT imagesNURBS-based cardiac-torso (NCATMotion-compensated temporal regularizationCardiac SPECT imagingBias-variance analysisDistance-dependent blurringGated cardiac SPECTMotion compensation approachReconstructed myocardiumSPECT imagesDetection of perfusion defectsSPECT reconstructionCardiac SPECTIntensity uniformityTemporal smoothnessPatient dataLeft ventricular myocardiumReconstructed imagesReconstruction processSpatial smoothingPerfusion defectsScatteringDegradation factorsTemporal regularityVentricular myocardiumMotion-compensated temporal summation of cardiac gated SPECT images using a deformable mesh model
Marin T, Wernick M, Yang Y, Brankov J. Motion-compensated temporal summation of cardiac gated SPECT images using a deformable mesh model. Annual International Conference Of The IEEE Engineering In Medicine And Biology Society (EMBC) 2009, 2009: 3657-3660. PMID: 19964313, PMCID: PMC2810283, DOI: 10.1109/iembs.2009.5333693.Peer-Reviewed Original ResearchMeSH KeywordsAlgorithmsCardiac-Gated Imaging TechniquesCardiac-Gated Single-Photon Emission Computer-Assisted TomographyComputer SimulationHeartHumansImage Processing, Computer-AssistedImaging, Three-DimensionalModels, StatisticalMotionPhantoms, ImagingRadiographic Image Interpretation, Computer-AssistedTomography, Emission-Computed, Single-PhotonConceptsDeformable mesh modelMotion blurring artifactsMesh modelCardiac gated SPECT imagingCardiac gated SPECTEstimating heart motionHeart motionNoisy imagesMotion estimationNoise reduction performanceTime dimensionEstimated motionBlurring artifactsIndividual framesPartial volume effectsNoise reductionQuantitative evaluationReduction performanceImagesNoiseSPECT imagesStatic SPECT imagesArtifactsFrameGate sequences