Results 21 to 30 of about 50,801 (153)
MR-based PET motion correction procedure for simultaneous MR-PET neuroimaging of human brain. [PDF]
PLoS ONE, 2012 Positron Emission Tomography (PET) images are prone to motion artefacts due to the long acquisition time of PET measurements. Recently, simultaneous magnetic resonance imaging (MRI) and PET have become available in the first generation of Hybrid MR-PET ...
Marcus Görge Ullisch +8 more
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Brain Sciences, 2013 Cocaine is a psychostimulant in the pharmacological class of drugs called Local Anesthetics. Interestingly, cocaine is the only drug in this class that has a chemical formula comprised of a tropane ring and is, moreover, addictive.
Patricia A. Broderick, Taylor Rosenbaum
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Superiorized algorithm for reconstruction of CT images from sparse-view and limited-angle polyenergetic data [PDF]
Physics in Medicine and Biology, 62(16), 6762, 2017, 2017 Recent work in CT imaging has seen increased interest in the use of total variation (TV) and related penalties to regularize problems involving reconstruction from undersampled or incomplete data. Superiorization is a recently proposed heuristic which provides an automatic procedure to "superiorize" an iterative reconstruction algorithm with respect to
arxiv +1 more source
Scientific Reports, 2022 Characterizing the microvasculature of the human brain is critical to advance understanding of brain vascular function. Most methods rely on tissue staining and microscopy in two-dimensions, which pose several challenges to visualize the three ...
Ju Young Lee +6 more
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Prenatal VPA exposure and changes in sensory processing by the superior colliculus
Frontiers in Integrative Neuroscience, 2011 Disorders involving dysfunctional sensory processing are characterized by an inability to filter sensory information, particularly simultaneously arriving multimodal inputs. We examined the effects of prenatal exposure to valproic acid (VPA), a teratogen
Georgia eDendrinos +2 more
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Superiorized Regularization of Inverse Problems [PDF]
arXiv, 2023 Inverse problems are characterized by their inherent non-uniqueness and sensitivity with respect to data perturbations. Their stable solution requires the application of regularization methods including variational and iterative regularization methods. Superiorization is a heuristic approach that can steer basic iterative algorithms to have small value
arxiv
Frontiers in Systems Neuroscience, 2015 Besides its well-known contribution to orienting behaviors, the superior colliculus (SC) might also play a role in controlling visually-guided reaching movements.
Jean-Hubert eCourjon +5 more
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Did you choose appropriate tracer for retrograde tracing of retinal ganglion cells? The differences between cholera toxin subunit B and Fluorogold. [PDF]
PLoS ONE, 2018 Cholera toxin subunit B (CTB) and Fluorogold(FG) are two widely utilized retrograde tracers to assess the number and function of retinal ganglion cells (RGCs).
Fei Yao +5 more
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Can Linear Superiorization Be Useful for Linear Optimization Problems? [PDF]
, 2016 Linear superiorization considers linear programming problems but instead of attempting to solve them with linear optimization methods it employs perturbation resilient feasibility-seeking algorithms and steers them toward reduced (not necessarily minimal) target function values.
arxiv +1 more source
Effects of ocular hypertension in the visual system of pigmented mice. [PDF]
PLoS ONE, 2015 To study the effects of ocular hypertension (OHT) on the visual system of C57BL/6 pigmented mice, the limbal and episcleral veins of the left eye were laser photocoagulated (LP).
Francisco J Valiente-Soriano +9 more
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