Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Nadine N Graedel"'
Autor:
Vahid Malekian, Nadine N Graedel, Alice Hickling, Ali Aghaeifar, Barbara Dymerska, Nadège Corbin, Oliver Josephs, Eleanor A. Maguire, Martina F. Callaghan
Publikováno v:
NeuroImage, Vol 279, Iss , Pp 120294- (2023)
Geometric distortion is a major limiting factor for spatial specificity in high-resolution fMRI using EPI readouts and is exacerbated at higher field strengths due to increased B0 field inhomogeneity. Prominent correction schemes are based on B0 fiel
Externí odkaz:
https://doaj.org/article/092ce4b984954c6c87207459e07f502c
Autor:
Lars Kasper, Maria Engel, Jakob Heinzle, Matthias Mueller-Schrader, Nadine N. Graedel, Jonas Reber, Thomas Schmid, Christoph Barmet, Bertram J. Wilm, Klaas Enno Stephan, Klaas P. Pruessmann
Publikováno v:
Data in Brief, Vol 42, Iss , Pp 108050- (2022)
We present data collected for the research article “Advances in Spiral fMRI: A High-resolution Study with Single-shot Acquisition” (Kasper et al. 2022). All data was acquired on a 7T ultra-high field MR system (Philips Achieva), equipped with a c
Externí odkaz:
https://doaj.org/article/f1780848e02e4981951306d45491754d
Autor:
Lars Kasper, Maria Engel, Jakob Heinzle, Matthias Mueller-Schrader, Nadine N. Graedel, Jonas Reber, Thomas Schmid, Christoph Barmet, Bertram J. Wilm, Klaas Enno Stephan, Klaas P. Pruessmann
Publikováno v:
NeuroImage, Vol 246, Iss , Pp 118738- (2022)
Spiral fMRI has been put forward as a viable alternative to rectilinear echo-planar imaging, in particular due to its enhanced average k-space speed and thus high acquisition efficiency. This renders spirals attractive for contemporary fMRI applicati
Externí odkaz:
https://doaj.org/article/b3171d6f1ebe4f8abc4a5891514a0e90
Autor:
Nadine N. Graedel, Lars Kasper, Maria Engel, Jennifer Nussbaum, Bertram J. Wilm, Klaas P. Pruessmann, S. Johanna Vannesjo
Publikováno v:
NeuroImage, Vol 245, Iss , Pp 118674- (2021)
Spiral imaging is very well suited for functional MRI, however its use has been limited by the fact that artifacts caused by gradient imperfections and B0 inhomogeneity are more difficult to correct compared to EPI. Effective correction requires accu
Externí odkaz:
https://doaj.org/article/a3ab65573f0d42e3b5a18dae775f83a9
Publikováno v:
NeuroImage, Vol 238, Iss , Pp 118235- (2021)
Acceleration methods in fMRI aim to reconstruct high fidelity images from under-sampled k-space, allowing fMRI datasets to achieve higher temporal resolution, reduced physiological noise aliasing, and increased statistical degrees of freedom. While l
Externí odkaz:
https://doaj.org/article/ca7773d4c45744519c744dd049241001
Publikováno v:
Magnetic resonance in medicine. 88(5)
Purpose: We investigate the use of TURBINE, a 3D radial-Cartesian acquisition scheme in which EPI planes are rotated about the phase-encoding axis to acquire a cylindrical k-space, for high-fidelity ultra-high isotropic resolution fMRI at 7T with min
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2bcfd572f69603a8368d04d72d672af
https://pubmed.ncbi.nlm.nih.gov/35785429
https://pubmed.ncbi.nlm.nih.gov/35785429
Autor:
Maria Engel, Klaas P. Pruessmann, Jennifer Nussbaum, Bertram J. Wilm, S. Johanna Vannesjo, Lars Kasper, Nadine N. Graedel
Publikováno v:
NeuroImage, 245
NeuroImage, Vol 245, Iss, Pp 118674-(2021)
NeuroImage, Vol 245, Iss, Pp 118674-(2021)
Spiral imaging is very well suited for functional MRI, however its use has been limited by the fact that artifacts caused by gradient imperfections and B0 inhomogeneity are more difficult to correct compared to EPI. Effective correction requires accu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21f8c8af316ecf78a069352fdc49486c
https://hdl.handle.net/20.500.11850/517265
https://hdl.handle.net/20.500.11850/517265
Autor:
Matthias Mueller-Schrader, Maria Engel, Bertram J. Wilm, Christoph Barmet, Klaas E. Stephan, Thomas Schmid, Klaas P. Pruessmann, Jonas Reber, Lars Kasper, Nadine N. Graedel, Jakob Heinzle
Publikováno v:
NeuroImage, 246
NeuroImage, Vol 246, Iss, Pp 118738-(2022)
NeuroImage, Vol 246, Iss, Pp 118738-(2022)
Spiral fMRI has been put forward as a viable alternative to rectilinear echo-planar imaging, in particular due to its enhanced average k-space speed and thus high acquisition efficiency. This renders spirals attractive for contemporary fMRI applicati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e2eec888fd388963f34794570fb32a9
https://pubmed.ncbi.nlm.nih.gov/34800666
https://pubmed.ncbi.nlm.nih.gov/34800666
Autor:
Maximilian Haeberlin, Julia Busch, Christoph Barmet, Lars Kasper, Klaas P. Pruessmann, Simon Gross, Nadine N. Graedel, S J Vannesjo
Publikováno v:
Magnetic Resonance in Medicine. 76:45-58
Purpose Gradient imperfections remain a challenge in MRI, especially for sequences relying on long imaging readouts. This work aims to explore image reconstruction based on k-space trajectories predicted by an impulse response model of the gradient s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f20440a3c7fc5ba300b766d931e31136
https://doi.org/10.1002/mrm.25841
https://doi.org/10.1002/mrm.25841
Publikováno v:
Magnetic Resonance in Medicine. 73:442-450
Purpose An anthropomorphic phantom with realistic electrical properties allows for a more accurate reproduction of tissue current patterns during excitation. A temperature map can then probe the worst-case heating expected in the unperfused case. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c8ba0c9f6ceeef8447e1f4cfe968f31
https://doi.org/10.1002/mrm.25123
https://doi.org/10.1002/mrm.25123