2013
Direct 4D PET reconstruction of parametric images into a stereotaxic brain atlas for [<sup>11</sup>C]raclopride
Gravel P, Verhaeghe J, Reader A. Direct 4D PET reconstruction of parametric images into a stereotaxic brain atlas for [11C]raclopride. 2011 IEEE Nuclear Science Symposium Conference Record 2013, 3994-3998. DOI: 10.1109/nssmic.2012.6551915.Peer-Reviewed Original ResearchKinetic parameter estimationKey processing stagesParameter estimationImage resolution degradationKinetic parametersInaccurate modelingVoxel-wise kinetic parametersPerformance of reconstructionResolution degradationSpatial transformation parametersMaximum likelihood expectation maximization reconstruction algorithmMotion correctionRoot mean squared errorImage resolutionSub-optimal estimatesRoot-MeanExpectation maximization reconstruction algorithmReconstruction frameworkInterpolation effectReconstruction algorithmReconstruction methodError analysisMean squared errorProcessing stagesParameters
2011
Direct 3D PET Image Reconstruction into MR Image Space
Gravel P, Verhaeghe J, Reader A. Direct 3D PET Image Reconstruction into MR Image Space. 2011, 3955-3962. DOI: 10.1109/nssmic.2011.6153752.Peer-Reviewed Original ResearchImage spaceTransformation parametersPET image reconstructionRigid body transformation parametersDifferent image spacesImage resolution degradationMotion correctionQuality of reconstructionRegistration transformation parametersReconstruction frameworkAbsolute error analysisImage registrationMean absolute errorInterpolation effectRegistration methodImage reconstructionImage resolutionFinal imageMLEM algorithmScanner geometrySimilarity criteriaAbsolute errorSpatial atlasDirect reconstructionImages