Výsledky vyhledávání - "TE, echo time"

Non-invasive imaging of single human motor units

Autor: MG Birkbeck, Linda Heskamp, Andrew M. Blamire, Roger G. Whittaker, Ian S. Schofield

Publikováno v: Clinical Neurophysiology

Highlights • A novel MRI technique capable of detecting the size, shape and distribution of human motor units is described. • Human motor units have a range of different outlines including elliptical, complex or split. • This technique demonstr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b84673e0bda4f9ad5aae52fdebd81a33
https://doi.org/10.1016/j.clinph.2020.02.004

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4-Dimensional Flow by Cardiac Magnetic Resonance Informs Surgical Planning in Partial Anomalous Pulmonary Venous Return

Autor: Karthik Ramakrishnan, Yue-Hin Loke, Adam Christopher, Russell R. Cross, Laura J. Olivieri

Publikováno v: JACC: Case Reports, Vol 2, Iss 4, Pp 672-677 (2020)
JACC Case Reports

Four-dimensional flow cardiac magnetic resonance enhances the visualization of blood flow in a 3-dimensional volume throughout the cardiac cycle, thus dramatically improving visualization of pulmonary venous anatomy by cardiac magnetic resonance. We

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::32725361a1aba19d642ed19a64f01433
http://www.sciencedirect.com/science/article/pii/S2666084920302278

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Estimation of diffusion, perfusion and fractional volumes using a multi-compartment relaxation-compensated intravoxel incoherent motion (IVIM) signal model

Autor: André Ahlgren, Linda Knutsson, Ofer Pasternak, Anna Rydhög, Ronnie Wirestam, Freddy Ståhlberg

Publikováno v: European Journal of Radiology Open
European Journal of Radiology Open, Vol 6, Iss, Pp 198-205 (2019)

Compartmental diffusion MRI models that account for intravoxel incoherent motion (IVIM) of blood perfusion allow for estimation of the fractional volume of the microvascular compartment. Conventional IVIM models are known to be biased by not accounti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b75c82c0342e2a362b9ed7682f525c1e
http://europepmc.org/articles/PMC6538803

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Aberrant modulation of brain activity underlies impaired working memory following traumatic brain injury

Autor: Jennie Ponsford, Matthew Mundy, Abbie S. Taing, Gershon Spitz

Publikováno v: NeuroImage : Clinical
NeuroImage: Clinical, Vol 31, Iss, Pp 102777-(2021)

Highlights • Adults with TBI show abnormal brain activation in canonical working memory networks. • Increased task load associated with behavioural deficits and greater activity in DMN. • Hyper- and hypo-activation are evident during encoding a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b0f897fc6d7a67f1a8b443b887c9b99
https://pubmed.ncbi.nlm.nih.gov/34343728

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Functional connectivity of the attention networks is altered and relates to neuropsychological outcomes in children with prenatal alcohol exposure

Autor: Xiangu Long, Ashley L. Ware, Catherine Lebel

Publikováno v: Developmental Cognitive Neuroscience, Vol 48, Iss, Pp 100951-(2021)
Developmental Cognitive Neuroscience

Highlights • Children with prenatal alcohol exposure (PAE) often have cognitive deficits. • We studied functional connectivity of attention networks in children with PAE. • Children with PAE had lower internetwork and higher intranetwork connec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed1841d1cd6f2193cf01f0f581586a07
http://www.sciencedirect.com/science/article/pii/S1878929321000426

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

Autor: Nurmi, Timo, Jaatela, Julia, Vallinoja, Jaakko, Mäenpää, Helena, Piitulainen, Harri

Publikováno v: NeuroImage: Clinical, Vol 32, Iss, Pp 102795-(2021)
NeuroImage : Clinical

Graphical abstract
Highlights • Cerebral palsy adolescents had stronger proprioceptive BOLD-responses. • Cerebral palsy adolescents had worse sensorimotor performance. • Stronger BOLD-responses were associated with worse sensorimotor perfo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::d0c3343a17947ea2fc044f760ca1f30a
https://aaltodoc.aalto.fi/handle/123456789/109965

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Multi-compartment analysis of the complex gradient-echo signal quantifies myelin breakdown in premanifest Huntington's disease

Autor: Hugh Rickards, Claudia Metzler-Baddeley, Elena Kleban, Derek K. Jones, Fabrizio Fasano, Chiara Casella, Anne Elizabeth Rosser, Elizabeth Coulthard

Publikováno v: NeuroImage : Clinical
Casella, C, Kleban, E, Rosser, A E, Coulthard, E, Rickards, H, Fasano, F, Metzler-Baddeley, C & Jones, D K 2021, ' Multi-compartment analysis of the complex gradient-echo signal quantifies myelin breakdown in premanifest Huntington's disease ', NeuroImage: Clinical, vol. 30, 102658, pp. 102658 . https://doi.org/10.1016/j.nicl.2021.102658
NeuroImage: Clinical, Vol 30, Iss, Pp 102658-(2021)

Highlights • Gradient-echo data were acquired from premanifest HD patients in the callosum at 7 T. • Reproducibility of multi-compartment analysis across callosal areas was assessed. • Reduced myelin water signal fraction (fm) in HD patients su

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06369db223f6e292acf3df84dbd47fc8
https://pubmed.ncbi.nlm.nih.gov/33865029

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Classifications of atherosclerotic plaque components with T1 and T2* mapping in 11.7 T MRI

Autor: Isabel Gonçalves, Lena Sundius, Adnan Bibic, My Truong, Finn Lennartsson, Roger Siemund, Ana Persson, Johan Wassélius, René in ‘t Zandt

Publikováno v: European Journal of Radiology Open
European Journal of Radiology Open, Vol 8, Iss, Pp 100323-(2021)

Graphical abstract
Highlights • Ex vivo MRI in 11.7 T with T1/T2* maps, is a non-destructive method to study carotid plaque content with good visual agreement with histology. • Quadratic discriminant analysis on ROI data from T1 and T2* maps

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c63b78ceecc97fc637874708a4a4c7b
https://pubmed.ncbi.nlm.nih.gov/33532518

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A longitudinal, multi-parametric functional MRI study to determine age-related changes in the rodent brain

Autor: Michael E. Kelly, Claire L. Gibson, Melissa Trotman-Lucas, Andrew Crofts, Justyna Janus

Publikováno v: NeuroImage, Vol 218, Iss, Pp 116976-(2020)
Neuroimage

As the population ages, the incidence of age-related neurological diseases and cognitive decline increases. To further understand disease-related changes in brain function it is advantageous to examine brain activity changes in healthy aging rodent m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa7a53f310aacdadd79e8cf3964420f2

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Cerebral Micro-Structural Changes in COVID-19 Patients – An MRI-based 3-month Follow-up Study

Autor: Yiping Lu, Dongdong Wang, Chu Chung Huang, Nan Mei, Bo Yin, Tianye Jia, Pu Yeh Wu, Yajing Zhao, Daoying Geng, Anling Xiao, Xuanxuan Li

Publikováno v: EClinicalMedicine, Vol 25, Iss, Pp 100484-(2020)
EClinicalMedicine

Background: Increasing evidence supported the possible neuro-invasion potential of SARS-CoV-2. However, no studies were conducted to explore the existence of the micro-structural changes in the central nervous system after infection. We aimed to iden

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6298b87ca7e05b02d8215068e43876b9
http://www.sciencedirect.com/science/article/pii/S2589537020302285

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