Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Rasmus Aamand"'
Autor:
Peter M. Rasmussen, Rasmus Aamand, Eddie Weitzberg, Michael Christiansen, Leif Østergaard, Torben E. Lund
Publikováno v:
NeuroImage: Clinical, Vol 24, Iss , Pp - (2019)
Age and apolipoprotein E (APOE) e4 genotype are two of the strongest known risk factors for sporadic Alzheimer's disease (AD). Neuroimaging has shown hemodynamic response changes with age, in asymptomatic carriers of the APOE e4 allele, and in AD. In
Externí odkaz:
https://doaj.org/article/6d1437ef8cfe4a37b60b66cae9e95889
Autor:
Nils D. Forkert, Rasmus Aamand, Christian Kames, Jonathan Doucette, Brian Hansen, Luxi Wei, Alexander Rauscher, Enedino Hernández-Torres, Torben Ellegaard Lund
Publikováno v:
Doucette, J, Wei, L, Hernández-Torres, E, Kames, C, D. Forkert, N, Olesen, R A, Lund, T E, Hansen, B & Rauscher, A 2019, ' Rapid solution of the Bloch-Torrey equation in anisotropic tissue: Application to dynamic susceptibility contrast MRI of cerebral white matter ', NeuroImage, vol. 185, pp. 198-207 . https://doi.org/10.1016/j.neuroimage.2018.10.035
Blood vessel related magnetic resonance imaging (MRI) contrast provides a window into the brain's metabolism and function. Here, we show that the spin echo dynamic susceptibility contrast (DSC) MRI signal of the brain's white matter (WM) strongly dep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1bb8328ac1aeda8aff1d862263de2061
https://pure.au.dk/portal/da/publications/rapid-solution-of-the-blochtorrey-equation-in-anisotropic-tissue-application-to-dynamic-susceptibility-contrast-mri-of-cerebral-white-matter(db1314d5-4d10-47f8-97a9-a2daaf379f62).html
https://pure.au.dk/portal/da/publications/rapid-solution-of-the-blochtorrey-equation-in-anisotropic-tissue-application-to-dynamic-susceptibility-contrast-mri-of-cerebral-white-matter(db1314d5-4d10-47f8-97a9-a2daaf379f62).html
Autor:
Michael Christiansen, Peter Mondrup Rasmussen, Torben Ellegaard Lund, Leif Østergaard, Eddie Weitzberg, Rasmus Aamand
Publikováno v:
NeuroImage: Clinical, Vol 24, Iss, Pp-(2019)
Rasmussen, P M, Aamand, R, Weitzberg, E, Christiansen, M, Østergaard, L & Lund, T E 2019, ' APOE gene-dependent BOLD responses to a breath-hold across the adult lifespan ', NeuroImage: Clinical, vol. 24, 101955 . https://doi.org/10.1016/j.nicl.2019.101955
NeuroImage : Clinical
Rasmussen, P M, Aamand, R, Weitzberg, E, Christiansen, M, Østergaard, L & Lund, T E 2019, ' APOE gene-dependent BOLD responses to a breath-hold across the adult lifespan ', NeuroImage: Clinical, vol. 24, 101955 . https://doi.org/10.1016/j.nicl.2019.101955
NeuroImage : Clinical
Age and apolipoprotein E (APOE) e4 genotype are two of the strongest known risk factors for sporadic Alzheimer's disease (AD). Neuroimaging has shown hemodynamic response changes with age, in asymptomatic carriers of the APOE e4 allele, and in AD. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8fedb80da7dc27604850a665ea03041
http://www.sciencedirect.com/science/article/pii/S2213158219303055
http://www.sciencedirect.com/science/article/pii/S2213158219303055
Autor:
Niels Juul, Leif Østergaard, Rasmus Aamand, Ronni Mikkelsen, Sune Nørhøj Jespersen, Anna Tietze, Brian Hansen, Jakob Udby Blicher, Jens Christian Sørensen, Irene Klærke Mikkelsen, Kim Ryun Drasbek, Thorbjørn S Engedal, Maryam Anzabi, Vibeke Bay, Erhard Trillingsgaard Næss-Schmidt, Nina K. Iversen, Mads Rasmussen
Publikováno v:
Østergaard, L, Engedal, T S, Aamand, R, Mikkelsen, R, Iversen, N K, Anzabi, M, Næss-Schmidt, E, Drasbek, K R, Bay, V, Blicher, J, Tietze, A, Mikkelsen, I K, Hansen, B, Jespersen, S N, Juul, N, Sørensen, J CH & Rasmussen, M 2014, ' Capillary transit time heterogeneity and flow-metabolism coupling after traumatic brain injury ', Journal of Cerebral Blood Flow and Metabolism, vol. 34, no. 10, pp. 1585-1598 . https://doi.org/10.1038/jcbfm.2014.131
Journal of Cerebral Blood Flow & Metabolism
Journal of Cerebral Blood Flow & Metabolism
Most patients who die after traumatic brain injury (TBI) show evidence of ischemic brain damage. Nevertheless, it has proven difficult to demonstrate cerebral ischemia in TBI patients. After TBI, both global and localized changes in cerebral blood fl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1cbb96eea0e2670eaad5616496118c71
https://doi.org/10.1038/jcbfm.2014.131
https://doi.org/10.1038/jcbfm.2014.131
Autor:
Leif Østergaard, Nikolaus Plesnila, Kim Mouridsen, Maryam Anzabi, Hugo Angleys, Nina K. Iversen, Peter Mondrup Rasmussen, Maryam Ardalan, Rasmus Aamand, Jens Christian Sørensen
Publikováno v:
Anzabi, M, Angleys, H, Aamand, R, Ardalan, M, Mouridsen, K, Rasmussen, P M, Sørensen, J C H, Plesnila, N, Østergaard, L & Iversen, N K 2019, ' Capillary flow disturbances after experimental subarachnoid hemorrhage: a contributor to delayed cerebral ischemia? ', Microcirculation, vol. 26, no. 3, e12516 . https://doi.org/10.1111/micc.12516
BACKGROUND: The high mortality and morbidity after subarachnoid hemorrhage (SAH) is partly due to delayed cerebral ischemia, which is traditionally ascribed to development of angiographic vasospasms. This relation has been challenged, and capillary f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0e2817a021715e7f5bdfadbb901d0c2
https://doi.org/10.1111/micc.12516
https://doi.org/10.1111/micc.12516
Autor:
Annette Obel, Jens Christian Sørensen, Nina K. Iversen, Jakob Udby Blicher, Eugenio Gutiérrez Jiménez, Niels Jørgen Secher, Mads Rasmussen, Thorbjørn S Engedal, Rasmus Aamand, Sanja Karabegovic, Niels Juul, Anna Tietze, Klaus Ulrik Koch, Changsi Cai, Irene Klærke Mikkelsen, Erhard Trillingsgaard Næss-Schmidt, Leif Østergaard, Mariam Anzabi
Publikováno v:
Østergaard, L, Aamand, R, Karabegovic, S, Tietze, A, Blicher, J U, Mikkelsen, I K, Iversen, N K, Secher, N, Engedal, T S, Anzabi, M, Jimenez, E G, Cai, C, Koch, K U, Næss-Schmidt, E T, Obel, A, Juul, N, Rasmussen, M & Sørensen, J C H 2013, ' The role of the microcirculation in delayed cerebral ischemia and chronic degenerative changes after subarachnoid hemorrhage ', Journal of Cerebral Blood Flow and Metabolism, vol. 33, no. 12, pp. 1825-37 . https://doi.org/10.1038/jcbfm.2013.173
Journal of Cerebral Blood Flow & Metabolism
Journal of Cerebral Blood Flow & Metabolism
The mortality after aneurysmal subarachnoid hemorrhage (SAH) is 50%, and most survivors suffer severe functional and cognitive deficits. Half of SAH patients deteriorate 5 to 14 days after the initial bleeding, so-called delayed cerebral ischemia (DC
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef5fc41150cee8f14687b62e2f867bdf
https://doi.org/10.1038/jcbfm.2013.173
https://doi.org/10.1038/jcbfm.2013.173
Autor:
Susanne Passow, Rasmus Aamand Olesen, Tom Christian Holm Adamsen, Ole-Heine Kvernenes, Lars Ersland, Karsten Specht, Thomas Schwarzlmüller, Nina Kleven-Madsen, Njål Brekke, Kenneth Hugdahl, Renate Grüner, Martin Biermann, Alexander R. Craven
Publikováno v:
Human Brain Mapping
Over the last decade, the brain's default‐mode network (DMN) and its function has attracted a lot of attention in the field of neuroscience. However, the exact underlying mechanisms of DMN functional connectivity, or more specifically, the blood‐
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf346f50b7c39eee753854ccaac3427a
https://hdl.handle.net/1956/12005
https://hdl.handle.net/1956/12005
Autor:
Passow, Susanne, Specht, Karsten, Adamsen, Tom Christian, Biermann, Martin, Brekke, Njål, Craig-Craven, Alexander Richard, Ersland, Lars, Grüner, Renate, Kleven-Madsen, Nina, Kvernenes, Ole Heine, Schwarzlmüller, Thomas, Olesen, Rasmus Aamand, Hugdahl, Kenneth
Publikováno v:
Passow, Susanne Specht, Karsten Adamsen, Tom Christian Biermann, Martin Brekke, Njål Craig-Craven, Alexander Richard Ersland, Lars Grüner, Renate Kleven-Madsen, Nina Kvernenes, Ole Heine Schwarzlmüller, Thomas Olesen, Rasmus Aamand Hugdahl, Kenneth . Default-mode network functional connectivity is closely related to metabolic activity. Human Brain Mapping. 2015, 36(6), 2027-2038
Human Brain Mapping
Human Brain Mapping
Externí odkaz:
http://hdl.handle.net/10852/50040
https://www.duo.uio.no/bitstream/handle/10852/50040/1/Passow_et_al-2015-Human_Brain_Mapping.pdf
https://www.duo.uio.no/bitstream/handle/10852/50040/1/Passow_et_al-2015-Human_Brain_Mapping.pdf
Publikováno v:
Aamand, R, Ho, Y-C L, Dalsgaard, T, Roepstorff, A & Lund, T E 2014, ' Dietary nitrate facilitates an acetazolamide-induced increase in cerebral blood flow during visual stimulation ', Journal of Applied Physiology . https://doi.org/10.1152/japplphysiol.00797.2013
The carbonic anhydrase (CA) inhibitor acetazolamide (AZ) is used routinely to estimate cerebrovascular reserve capacity in patients, as it reliably increases cerebral blood flow (CBF). However, the mechanism by which AZ accomplishes this CBF increase
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f152beb2ec9b2d448b7cec5008220c0d
https://pubmed.ncbi.nlm.nih.gov/24336884
https://pubmed.ncbi.nlm.nih.gov/24336884
Autor:
Grethe Andersen, Kim Mouridsen, Jakob Udby Blicher, Salvador Pedraza, Nina K. Iversen, Kartheeban Nagenthiraja, M. Hansen, Joaquín Serena, Susanne Siemonsen, Kristina D Hougaard, Rasmus Aamand, Josep Puig, Susanne Lise Bekke, Claus Z Simonsen, Kristjana Ýr Jónsdóttir, Götz Thomalla, Boris Modrau, Martin Gervais Dahlman, Changsi Cai, Anna Tietze, Lars Riisgaard Ribe, T.-H. Cho, Leif Østergaard, Sune Nørhøj Jespersen, Jens Fiehler, Irene Klærke Mikkelsen, Paul von Weitzel-Mudersbach, Niels Hjort, Norbert Nighoghossian
Publikováno v:
Østergaard, L, Jespersen, S N, Mouridsen, K, Mikkelsen, I K, Jonsdottír, K Ý, Tietze, A, Blicher, J U, Aamand, R, Hjort, N, Iversen, N K, Cai, C, Hougaard, K D, Simonsen, C Z, Von Weitzel-Mudersbach, P, Modrau, B, Nagenthiraja, K, Riisgaard Ribe, L, Hansen, M B, Bekke, S L, Dahlman, M G, Puig, J, Pedraza, S, Serena, J, Cho, T H, Siemonsen, S, Thomalla, G, Fiehler, J, Nighoghossian, N & Andersen, G 2013, ' The role of the cerebral capillaries in acute ischemic stroke : The extended penumbra model ', Journal of Cerebral Blood Flow and Metabolism, vol. 33, no. 5, pp. 635-648 . https://doi.org/10.1038/jcbfm.2013.18
Journal of Cerebral Blood Flow & Metabolism
Østergaard, L, Jespersen, S N, Mouridsen, K, Mikkelsen, I K, Jónsdóttir, K Ý, Tietze, A, Blicher, J, Aamand, R, Hjort, N, Iversen, N K, Cai, C, Hougaard, K D, Simonsen, C Z, Weitzel-Mudersbach, P V, Modrau, B, Nagenthiraja, K, Ribe, L R, Hansen, M B, Bekke, S L, Dahlmann, M G, Puig, J, Pedraza, S, Serena, J, Cho, T-H, Siemonsen, S, Thomalla, G, Fiehler, J, Nighoghossian, N & Andersen, G 2013, ' The role of the cerebral capillaries in acute ischemic stroke: the extended penumbra model ', Journal of Cerebral Blood Flow and Metabolism, vol. 33, no. 5, pp. 635 . https://doi.org/10.1038/jcbfm.2013.18
Journal of Cerebral Blood Flow & Metabolism
Østergaard, L, Jespersen, S N, Mouridsen, K, Mikkelsen, I K, Jónsdóttir, K Ý, Tietze, A, Blicher, J, Aamand, R, Hjort, N, Iversen, N K, Cai, C, Hougaard, K D, Simonsen, C Z, Weitzel-Mudersbach, P V, Modrau, B, Nagenthiraja, K, Ribe, L R, Hansen, M B, Bekke, S L, Dahlmann, M G, Puig, J, Pedraza, S, Serena, J, Cho, T-H, Siemonsen, S, Thomalla, G, Fiehler, J, Nighoghossian, N & Andersen, G 2013, ' The role of the cerebral capillaries in acute ischemic stroke: the extended penumbra model ', Journal of Cerebral Blood Flow and Metabolism, vol. 33, no. 5, pp. 635 . https://doi.org/10.1038/jcbfm.2013.18
The pathophysiology of cerebral ischemia is traditionally understood in relation to reductions in cerebral blood flow (CBF). However, a recent reanalysis of the flow-diffusion equation shows that increased capillary transit time heterogeneity (CTTH)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c7e566c4ad893deb8a3ffbf7e8ee1a6
https://vbn.aau.dk/da/publications/21d6636a-5892-43a5-9b12-eb9a67da8b63
https://vbn.aau.dk/da/publications/21d6636a-5892-43a5-9b12-eb9a67da8b63