Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Sebastian C, Niesporek"'
Autor:
Louise Ebersberger, Fabian J. Kratzer, Arne Potreck, Sebastian C. Niesporek, Myriam Keymling, Armin M. Nagel, Martin Bendszus, Wolfgang Wick, Mark E. Ladd, Heinz-Peter Schlemmer, Angelika Hoffmann, Tanja Platt, Daniel Paech
Publikováno v:
Frontiers in Neuroscience, Vol 17 (2023)
Dynamic oxygen-17 (17O) magnetic resonance imaging (MRI) is an imaging method that enables a direct and non-invasive assessment of cerebral oxygen metabolism and thus potentially the distinction between viable and non-viable tissue employing a three-
Externí odkaz:
https://doaj.org/article/3cdfae582f2e4202bb8b0e602354186f
Autor:
Daniel Wenz, Johanna Lott, Thoralf Niendorf, Armin M. Nagel, Andre Kuehne, Sebastian C. Niesporek
Publikováno v:
Magnetic Resonance in Medicine. 83:203-213
PURPOSE: Potassium ions (K(+)) play a critical role in cardiac electrophysiology, and changes in their concentration reflect pathophysiological processes related to cardiovascular diseases. Here, we investigated the feasibility of in vivo (39)K MRI o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c693c410a829f5b4ecfd90c32efe03f2
https://doi.org/10.1002/mrm.27951
https://doi.org/10.1002/mrm.27951
Autor:
Armin M. Nagel, Thoralf Niendorf, Mark E. Ladd, Sebastian C. Niesporek, Nicolas G.R. Behl, Tanja Platt, Peter Bachert, Daniel Paech, Johanna Lott
Publikováno v:
Magnetic Resonance in Medicine. 82:159-173
Purpose To quantify the tissue sodium concentration (TSC) in cardiac 23 Na MRI. To evaluate the influence of different correction methods on the measured myocardial TSC. Methods 23 Na MRI of four healthy subjects was conducted at a whole-body 7T MRI
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fa7f8ffa3f824452112477789b3db08
https://doi.org/10.1002/mrm.27703
https://doi.org/10.1002/mrm.27703
Autor:
Peter Bachert, Reiner Umathum, L Ebersberger, Sebastian C. Niesporek, V Franke, Daniel Paech, Tanja Platt, Mark E. Ladd, Armin M. Nagel, Heinz Peter Schlemmer, Andreas Korzowski
Publikováno v:
RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e452ee1c1520fcf9db721e000af898b
https://doi.org/10.1055/s-0040-1703105
https://doi.org/10.1055/s-0040-1703105
Autor:
Armin M. Nagel, Wolfgang Wick, Martin Bendszus, Andreas Unterberg, Daniel Paech, Tanja Platt, Reiner Umathum, Mark E. Ladd, L Ebersberger, Heinz Peter Schlemmer, Sebastian C. Niesporek
Publikováno v:
RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2256341a2047ccc966e688494d131ea4
https://doi.org/10.1055/s-0040-1703120
https://doi.org/10.1055/s-0040-1703120
Autor:
Moritz Scherer, Sebastian C. Niesporek, Miriam N Schultheiss, Andreas Unterberg, Mark E. Ladd, Sebastian Regnery, Reiner Umathum, Armin M. Nagel, Antje Wick, Martin Bendszus, Heinz Peter Schlemmer, Tanja Platt, Daniel Paech, Wolfgang Wick
Publikováno v:
Radiology. 295(1)
Background Altered metabolism is a characteristic of cancer. Because of a shift in glucose metabolism from oxidative phosphorylation to lactate production for energy generation, malignant tumors are characterized by increased glycolysis followed by l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7aa5e1506f386bb568488abd2ce94a92
https://pubmed.ncbi.nlm.nih.gov/32073381
https://pubmed.ncbi.nlm.nih.gov/32073381
Autor:
Sebastian C. Niesporek, Sebastian Flassbeck, Peter Bachert, Armin M. Nagel, Mark E. Ladd, Jonathan M. Lommen, Nicolas G.R. Behl
Publikováno v:
Magnetic Resonance in Medicine. 80:571-584
PURPOSE To investigate and to reduce influences on the determination of the short and long apparent transverse relaxation times ( T2,s*, T2,l*) of 23 Na in vivo with respect to signal sampling. METHODS The accuracy of T2* determination was analyzed i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76e66a4dd73b5fe0d7a6ac7d50e20721
https://doi.org/10.1002/mrm.27059
https://doi.org/10.1002/mrm.27059
Autor:
Peter Bachert, Nicolas G.R. Behl, Armin M. Nagel, Reiner Umathum, Mark E. Ladd, Daniel Paech, Sebastian C. Niesporek, Jonathan M. Lommen
Publikováno v:
Magnetic Resonance in Medicine. 79:2923-2934
PURPOSE To assess the reproducibility of 17 O MRI-based determination of the cerebral metabolic rate of oxygen consumption (CMRO2 ) in healthy volunteers. To assess the influence of image acquisition and reconstruction parameters on dynamic quantific
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20e6d73cdd8e73d740f0db9a2c8f4b2b
https://doi.org/10.1002/mrm.26952
https://doi.org/10.1002/mrm.26952
Autor:
Peter Bachert, Thomas Fiedler, Reiner Umathum, Sebastian C. Niesporek, Mark E. Ladd, Armin M. Nagel
Publikováno v:
Magnetic Resonance Materials in Physics, Biology and Medicine. 30:519-536
Functional parameters can be measured with the help of quantitative non-proton MRI where exact relaxometry parameters are needed. Investigation of $$T_{2}^{*}$$ is often biased by strong partial volume (PV) effects. Hence, in this work a PV correctio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6666763ba95f69481386d7faf4b5b3c2
https://doi.org/10.1007/s10334-017-0623-2
https://doi.org/10.1007/s10334-017-0623-2
Autor:
Sebastian, Lachner, Laurent, Ruck, Sebastian C, Niesporek, Matthias, Utzschneider, Johanna, Lott, Bernhard, Hensel, Arnd, Dörfler, Michael, Uder, Armin M, Nagel
Publikováno v:
Zeitschrift fur medizinische Physik. 30(2)
To correct for the non-homogeneous receive profile of a phased array head coil in sodium magnetic resonance imaging (Phantom measurements show the correction of the intensity profile applying the given methods. Compared to the uncorrected phased arra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::08ddb57e58c9e2808f9008ed0eb92e31
https://pubmed.ncbi.nlm.nih.gov/31866116
https://pubmed.ncbi.nlm.nih.gov/31866116