Search results for "Ordered subset expectation maximization"

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Evaluation of MRI and cannabinoid type 1 receptor PET templates constructed using DARTEL for spatial normalization of rat brains

2015

Purpose: Image registration is one prerequisite for the analysis of brain regions in magnetic-resonance-imaging (MRI) or positron-emission-tomography (PET) studies. Diffeomorphic anatomical registration through exponentiated Lie algebra (DARTEL) is a nonlinear, diffeomorphic algorithm for image registration and construction of image templates. The goal of this small animal study was (1) the evaluation of a MRI and calculation of several cannabinoid type 1 (CB1) receptor PET templates constructed using DARTEL and (2) the analysis of the image registration accuracy of MR and PET images to their DARTEL templates with reference to analytical and iterative PET reconstruction algorithms. Methods:…

medicine.diagnostic_testComputer sciencebusiness.industryImage registrationMagnetic resonance imagingPattern recognitionImage processingGeneral MedicineIterative reconstructionScintigraphyRegularization (mathematics)White mattermedicine.anatomical_structurePositron emission tomographyOrdered subset expectation maximizationSpatial normalizationmedicineMaximum a posteriori estimationTomographyArtificial intelligencebusinessNuclear medicineMedical Physics
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