Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Sune N Jespersen"'
Autor:
Rita Alves, Rafael Neto Henriques, Leevi Kerkelä, Cristina Chavarrías, Sune N Jespersen, Noam Shemesh
Publikováno v:
NeuroImage, Vol 247, Iss , Pp 118833- (2022)
Noninvasively detecting and characterizing modulations in cellular scale micro-architecture remains a desideratum for contemporary neuroimaging. Diffusion MRI (dMRI) has become the mainstay methodology for probing microstructure, and, in ischemia, it
Externí odkaz:
https://doaj.org/article/0ed0cf9838df400da311e55b6e89e128
Autor:
Vibeke Bay, Birgitte F Kjølby, Nina K Iversen, Irene K Mikkelsen, Maryam Ardalan, Jens R Nyengaard, Sune N Jespersen, Kim R Drasbek, Leif Østergaard, Brian Hansen
Publikováno v:
PLoS ONE, Vol 13, Iss 4, p e0196161 (2018)
Diffusion kurtosis imaging (DKI) is a new promising MRI technique with microstructural sensitivity superior to conventional diffusion tensor (DTI) based methods. In stroke, considerable mismatch exists between the infarct lesion outline obtained from
Externí odkaz:
https://doaj.org/article/41d0bde271324fe2adeaeae5c0e9dbd9
Publikováno v:
Frontiers in Integrative Neuroscience, Vol 7 (2013)
Accurate mathematical modeling is integral to the ability to interpret diffusion magneticresonance (MR) imaging data in terms of cellular structure in brain gray matter (GM). Inprevious work, we derived expressions to facilitate the determination of
Externí odkaz:
https://doaj.org/article/e7bfd25b36d64ce48afc89ba3450e31d
Autor:
Peter Vestergaard-Poulsen, Gregers Wegener, Brian Hansen, Carsten R Bjarkam, Stephen J Blackband, Niels C Nielsen, Sune N Jespersen
Publikováno v:
PLoS ONE, Vol 6, Iss 7, p e20653 (2011)
Chronic stress has detrimental effects on physiology, learning and memory and is involved in the development of anxiety and depressive disorders. Besides changes in synaptic formation and neurogenesis, chronic stress also induces dendritic remodeling
Externí odkaz:
https://doaj.org/article/b71a505e8bbf41a1b427f7087fc80fc7
Autor:
Andrew S Bock, Jaime F. Olavarria, Lindsey A Leigland, Erin N Taber, Sune N Jespersen, Christopher D Kroenke
Publikováno v:
Frontiers in Systems Neuroscience, Vol 4 (2010)
Diffusion tensor imaging (DTI) is a technique that non-invasively provides quantitative measures of water translational diffusion, including fractional anisotropy (FA), that are sensitive to the shape and orientation of cellular elements, such as axo
Externí odkaz:
https://doaj.org/article/4e9f1edba05e41178b1805abf77ff54c
Publikováno v:
NeuroImage, Vol 273, Iss , Pp 120118- (2023)
MP-PCA denoising has become the method of choice for denoising MRI data since it provides an objective threshold to separate the signal components from unwanted thermal noise components. In rodents, thermal noise in the coils is an important source o
Externí odkaz:
https://doaj.org/article/828cde9738f2421b91ae8f068d51f5d1
Publikováno v:
NeuroImage, Vol 231, Iss , Pp 117849- (2021)
Information about tissue on the microscopic and mesoscopic scales can be accessed by modelling diffusion MRI signals, with the aim of extracting microstructure-specific biomarkers. The standard model (SM) of diffusion, currently the most broadly adop
Externí odkaz:
https://doaj.org/article/abb1bd1dc6904eb18c8353f824badde3
Autor:
Rafael Neto Henriques, Andrada Ianuş, Lisa Novello, Jorge Jovicich, Sune N Jespersen, Noam Shemesh
Marčenko-Pastur (MP) PCA denoising is emerging as an effective means for noise suppression in MRI acquisitions with redundant dimensions. However, MP-PCA performance is severely compromised by spatially correlated noise – an issue typically affect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc4abc360bcd73011a3ae266b13db871
https://doi.org/10.1101/2023.03.29.534707
https://doi.org/10.1101/2023.03.29.534707
Publikováno v:
Olesen, J L, Østergaard, L, Shemesh, N & Jespersen, S N 2022, ' Diffusion time dependence, power-law scaling, and exchange in gray matter ', NeuroImage, vol. 251, 118976 . https://doi.org/10.1016/j.neuroimage.2022.118976
NeuroImage, Vol 251, Iss, Pp 118976-(2022)
NeuroImage, Vol 251, Iss, Pp 118976-(2022)
Diffusion MRI (dMRI) provides contrast that reflect diffusing spins' interactions with microstructural features of biological systems, but its specificity remains limited due to the ambiguity of its relation to the underlying microstructure. To impro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0df005cb33778087051c051cdd7ebc9
https://pure.au.dk/portal/da/publications/diffusion-time-dependence-powerlaw-scaling-and-exchange-in-gray-matter(96225b39-fdb2-421f-a0a7-d7545ca943fa).html
https://pure.au.dk/portal/da/publications/diffusion-time-dependence-powerlaw-scaling-and-exchange-in-gray-matter(96225b39-fdb2-421f-a0a7-d7545ca943fa).html
Autor:
Brian Hansen, Sune N. Jespersen
Publikováno v:
Hansen, B & Jespersen, S 2017, ' Recent developments in fast kurtosis imaging ', Frontiers in Physics, vol. 5, 40 . https://doi.org/10.3389/fphy.2017.00040
Frontiers in Physics, Vol 5 (2017)
Frontiers in Physics, Vol 5 (2017)
Diffusion kurtosis imaging (DKI) is an extension of the popular diffusion tensor imaging (DTI) technique. DKI takes into account leading deviations from Gaussian diffusion stemming from a number of effects related to the microarchitecture and compart
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3fd852a9031a42d51d32b2f7cd2498e