Search results for " expectation maximization"

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Stronger proprioceptive BOLD-responses in the somatosensory cortices reflect worse sensorimotor function in adolescents with and without cerebral pal…

2020

Graphical abstract

CP-oireyhtymäCHILDRENSM1PASSIVE FINGERDP diplegic3124 Neurology and psychiatryEVOKED-POTENTIALSBRAINChildMOTOR CORTEXPassive movementTE echo timeEM expectation maximizationliikeaistiBOLD Blood-Oxygen-Level-Dependent signalRegular ArticleMagnetic Resonance ImagingTD typically-developedTR repetition timeSIIGMFCS Gross Motor Function Classification SystemMANCOVA Multivariate analysis of covarianceEPI echo planar imagingHP hemiplegicfMRI functional magnetic resonance imagingFemaleTACTILE STIMULATIONhalvausAGE-RELATED DIFFERENCESAdolescentComputer applications to medicine. Medical informaticsR858-859.7HemiplegiaORGANIZATIONDiplegiatuntoaistiMOVEMENTSIPT Sensory Integration and Praxis TestsROI regions of interestHumansSISII cortex secondary somatosensory cortexCP cerebral palsyRC346-429ComputingMethodologies_COMPUTERGRAPHICSGLM General Linear ModelCerebral Palsy3112 NeurosciencesSPM Statistical Parametric MappingSomatosensory CortexHandProprioceptionSI cortex primary somatosensory cortexGABA CONCENTRATIONKinesthesiaNeurology. Diseases of the nervous systemPSC percent signal change
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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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