Search Results - "Tse, Desmond H.Y."
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Echoes from Intrinsic Connectivity Networks in the Subcortex
Published in The Journal of neuroscience (27-09-2023)“…Decades of research have greatly improved our understanding of intrinsic human brain organization in terms of functional networks and the transmodal hubs…”
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A high-resolution 7 Tesla resting-state fMRI dataset optimized for studying the subcortex
Published in Data in brief (01-08-2024)“…To achieve a comprehensive understanding of spontaneous brain dynamics in humans, in vivo acquisition of intrinsic activity across both cortical and…”
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High field imaging of large-scale neurotransmitter networks: Proof of concept and initial application to epilepsy
Published in NeuroImage clinical (01-01-2018)“…The brain can be considered a network, existing of multiple interconnected areas with various functions. MRI provides opportunities to map the large-scale…”
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4
Echoes from Intrinsic Connectivity Networks in the Subcortex
Published in The Journal of neuroscience (2023)“…Decades of research have greatly improved our understanding of intrinsic human brain organization in terms of functional networks and the transmodal hubs…”
Get full text
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5
Tuned bipolar oscillating gradients for mapping frequency dispersion of diffusion kurtosis in the human brain
Published in Magnetic resonance in medicine (01-02-2023)“…Purpose Oscillating gradient spin‐echo (OGSE) sequences have demonstrated an ability to probe time‐dependent microstructural features, although they often…”
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Cannabis induced increase in striatal glutamate associated with loss of functional corticostriatal connectivity
Published in European neuropsychopharmacology (01-12-2019)“…•Administration of THC increased striatal glutamate concentrations.•THC decreased corticostriatal functional connectivity, indicating increased…”
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Ultra-high resolution blood volume fMRI and BOLD fMRI in humans at 9.4 T: Capabilities and challenges
Published in NeuroImage (Orlando, Fla.) (01-09-2018)“…Functional mapping of cerebral blood volume (CBV) changes has the potential to reveal brain activity with high localization specificity at the level of…”
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High‐resolution gradient‐recalled echo imaging at 9.4T using 16‐channel parallel transmit simultaneous multislice spokes excitations with slice‐by‐slice flip angle homogenization
Published in Magnetic resonance in medicine (01-09-2017)“…Purpose In order to fully benefit from the improved signal‐to‐noise and contrast‐to‐noise ratios at 9.4T, the challenges of B1+ inhomogeneity and the long…”
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B1+ inhomogeneity mitigation in CEST using parallel transmission
Published in Magnetic resonance in medicine (01-12-2017)“…Purpose In order to benefit from the increased spectral bandwidth at ultrahigh field (UHF), the use of parallel transmission (pTx) to mitigate flip‐angle…”
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inhomogeneity mitigation in CEST using parallel transmission
Published in Magnetic resonance in medicine (01-12-2017)“…Purpose In order to benefit from the increased spectral bandwidth at ultrahigh field (UHF), the use of parallel transmission (pTx) to mitigate flip‐angle…”
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Reduced responsiveness of the reward system is associated with tolerance to cannabis impairment in chronic users
Published in Addiction biology (01-01-2021)“…Cannabis is the most commonly used illicit drug in the world. However, because of a changing legal landscape and rising interest in therapeutic utility, there…”
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Estimating and eliminating the excitation errors in bipolar gradient composite excitations caused by radiofrequency‐gradient delay: Example of bipolar spokes pulses in parallel transmission
Published in Magnetic resonance in medicine (01-11-2017)“…Purpose To eliminate a slice‐position–dependent excitation error commonly observed in bipolar‐gradient composite excitations such as spokes pulses in parallel…”
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Riluzole effectively treats psychotic symptoms and improves cognition in 22q11.2 deletion syndrome: A clinical case
Published in European journal of medical genetics (01-08-2019)“…22q11.2 deletion syndrome (22q11DS) is a genetic disorder caused by a hemizygous microdeletion on the long arm of chromosome 22 and is associated with a high…”
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GABA metabolism and its role in gamma‐band oscillatory activity during auditory processing: An MRS and EEG study
Published in Human brain mapping (01-08-2017)“…Gamma‐aminobutyric acid (GABA) and glutamate are believed to have inhibitory and exhibitory neuromodulatory effects that regulate the brain's response to…”
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Magnetic resonance imaging at 9.4 T: the Maastricht journey
Published in Magma (New York, N.Y.) (01-04-2023)“…The 9.4 T scanner in Maastricht is a whole-body magnet with head gradients and parallel RF transmit capability. At the time of the design, it was…”
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Glutamatergic and GABAergic reactivity and cognition in 22q11.2 deletion syndrome and healthy volunteers: A randomized double-blind 7-Tesla pharmacological MRS study
Published in Journal of psychopharmacology (Oxford) (01-08-2020)“…Aims: 22q11.2 deletion syndrome (22q11.2DS) is associated with impaired cognitive functioning. Glutamatergic pathways have been linked with cognition and are…”
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Microstructural and functional correlates of glutamate concentration in the posterior cingulate cortex
Published in Journal of neuroscience research (01-09-2017)“…Glutamate is the major excitatory neurotransmitter in the human brain and has a central role in both intrinsic and stimulus‐induced activity. We conducted a…”
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On the reproducibility of hippocampal MEGA-sLASER GABA MRS at 7T using an optimized analysis pipeline
Published in Magma (New York, N.Y.) (01-06-2021)“…Objectives GABA is the most important inhibitory neurotransmitter. Thus, variation in its concentration is connected to a wide variety of diseases. However,…”
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The Relationships between Dopaminergic, Glutamatergic, and Cognitive Functioning in 22q11.2 Deletion Syndrome: A Cross-Sectional, Multimodal [sup.1]H-MRS and [sup.18]F-Fallypride PET Study
Published in Genes (01-09-2022)“…Background: Individuals with 22q11.2 deletion syndrome (22q11DS) are at increased risk of developing psychosis and cognitive impairments, which may be related…”
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Encoding methods for B 1 + mapping in parallel transmit systems at ultra high field
Published in Journal of magnetic resonance (1997) (01-08-2014)Get full text
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