Search Results - "McGinnity, Colm J"
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Attenuation of proliferation in oligodendrocyte precursor cells by activated microglia
Published in Journal of neuroscience research (01-06-2010)“…Activated microglia can influence the survival of neural cells through the release of cytotoxic factors. Here, we investigated the interaction between…”
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N-methyl-D-aspartate receptor availability in first-episode psychosis: a PET-MR brain imaging study
Published in Translational psychiatry (12-08-2021)“…N-methyl-D-aspartate receptor (NMDAR) hypofunction is hypothesised to underlie psychosis but this has not been tested early in illness. To address this, we…”
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A Retrospective Case Series Analysis of the Relationship Between Phenylalanine: Tyrosine Ratio and Cerebral Glucose Metabolism in Classical Phenylketonuria and Hyperphenylalaninemia
Published in Frontiers in neuroscience (17-06-2021)“…We retrospectively examined the relationship between blood biomarkers, in particular the historical mean phenylalanine to tyrosine (Phe:Tyr) ratio, and…”
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PET image enhancement using artificial intelligence for better characterization of epilepsy lesions
Published in Frontiers in medicine (16-11-2022)“…Introduction [ 18 F]fluorodeoxyglucose ([ 18 F]FDG) brain PET is used clinically to detect small areas of decreased uptake associated with epileptogenic…”
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Error propagation analysis of seven partial volume correction algorithms for [18F]THK-5351 brain PET imaging
Published in EJNMMI physics (14-09-2020)“…Background Novel partial volume correction (PVC) algorithms have been validated by assuming ideal conditions of image processing; however, in real clinical PET…”
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Quantification of opioid receptor availability following spontaneous epileptic seizures: Correction of [11C]diprenorphine PET data for the partial-volume effect
Published in NeuroImage (Orlando, Fla.) (01-10-2013)“…Previous positron emission tomography (PET) studies in refractory temporal lobe epilepsy (TLE) using the non-selective opioid receptor antagonist…”
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7
Mapping neurotransmitter systems to the structural and functional organization of the human neocortex
Published in Nature neuroscience (01-11-2022)“…Neurotransmitter receptors support the propagation of signals in the human brain. How receptor systems are situated within macro-scale neuroanatomy and how…”
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Simplifying [18F]GE-179 PET: are both arterial blood sampling and 90-min acquisitions essential?
Published in EJNMMI research (11-06-2018)“…Introduction The NMDA receptor radiotracer [ 18 F]GE-179 has been used with 90-min scans and arterial plasma input functions. We explored whether (1) arterial…”
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On brain atlas choice and automatic segmentation methods: a comparison of MAPER & FreeSurfer using three atlas databases
Published in Scientific reports (18-02-2020)“…Several automatic image segmentation methods and few atlas databases exist for analysing structural T1-weighted magnetic resonance brain images. The impact of…”
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Multi‐modal synergistic PET and MR reconstruction using mutually weighted quadratic priors
Published in Magnetic resonance in medicine (01-03-2019)“…Purpose To propose a framework for synergistic reconstruction of PET‐MR and multi‐contrast MR data to improve the image quality obtained from noisy PET data…”
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Intercomparison of MR‐informed PET image reconstruction methods
Published in Medical physics (Lancaster) (01-11-2019)“…Purpose Numerous image reconstruction methodologies for positron emission tomography (PET) have been developed that incorporate magnetic resonance (MR) imaging…”
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Motion‐corrected and high‐resolution anatomically assisted (MOCHA) reconstruction of arterial spin labeling MRI
Published in Magnetic resonance in medicine (01-09-2020)“…Purpose A model‐based reconstruction framework is proposed for motion‐corrected and high‐resolution anatomically assisted (MOCHA) reconstruction of arterial…”
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A prospective 5-year longitudinal study detects neurocognitive and imaging correlates of seizure remission in self-limiting Rolandic epilepsy
Published in Epilepsy & behavior (01-10-2023)“…•Altered brain development in left-frontal lobe structures in children with Rolandic epilepsy (RE).•During active epilepsy, developmental coordination disorder…”
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MR-Guided Kernel EM Reconstruction for Reduced Dose PET Imaging
Published in IEEE transactions on radiation and plasma medical sciences (01-05-2018)“…PET image reconstruction is highly susceptible to the impact of Poisson noise, and if shorter acquisition times or reduced injected doses are used, the noisy…”
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Test-retest reproducibility of quantitative binding measures of [11C]Ro15-4513, a PET ligand for GABAAreceptors containing alpha5 subunits
Published in NeuroImage (Orlando, Fla.) (15-05-2017)“…Introduction Alteration of γ-aminobutyric acid “A” (GABAA) receptor-mediated neurotransmission has been associated with various neurological and psychiatric…”
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Deep Convolutional Backbone Comparison for Automated PET Image Quality Assessment
Published in IEEE transactions on radiation and plasma medical sciences (01-11-2024)“…Pretraining deep convolutional network mappings using natural images helps with medical imaging analysis tasks; this is important given the limited number of…”
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The association between N-methyl-d-aspartate receptor availability and glutamate levels: A multi-modal PET-MR brain imaging study in first-episode psychosis and healthy controls
Published in Journal of psychopharmacology (Oxford) (01-09-2022)“…Background: Evidence from post-mortem studies and in vivo imaging studies suggests there may be reduced N-methyl-d-aspartate receptor (NMDAR) levels in the…”
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Test-retest reproducibility of quantitative binding measures of [ 11 C]Ro15-4513, a PET ligand for GABA A receptors containing alpha5 subunits
Published in NeuroImage (Orlando, Fla.) (15-05-2017)“…Alteration of γ-aminobutyric acid "A" (GABA ) receptor-mediated neurotransmission has been associated with various neurological and psychiatric disorders. […”
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Pre-Training, Transfer Learning and Pretext Learning for a Convolutional Neural Network Applied to Automated Assessment of Clinical PET Image Quality
Published in IEEE transactions on radiation and plasma medical sciences (01-04-2023)“…Positron emission tomography (PET) using a fraction of the usual injected dose would reduce the amount of radioligand needed, as well as the radiation dose to…”
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Spatially Compact MR-Guided Kernel EM for PET Image Reconstruction
Published in IEEE transactions on radiation and plasma medical sciences (01-09-2018)“…Positron emission tomography (PET) is a highly sensitive functional and molecular imaging modality which can measure picomolar concentrations of an injected…”
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