Repeatability and reproducibility of cerebral 23Na imaging in healthy subjects

Autor: Melissa M. Meyer, Stefan Haneder, Simon Konstandin, Johannes Budjan, John N. Morelli, Lothar R. Schad, Hans U. Kerl, Stefan O. Schoenberg, Christoph Kabbasch

Publikováno v: BMC Medical Imaging, Vol 19, Iss 1, Pp 1-7 (2019)

Abstract Background Initial reports of 23Na magnetic resonance imaging (MRI) date back to the 1970s. However, methodological challenges of the technique hampered its widespread adoption for many years. Recent technical developments have overcome some

Externí odkaz: https://doaj.org/article/a3e38398b9ff432ab3bf78f6bf9ba6c7

Sodium Fluctuations in Astroglia and Their Potential Impact on Astrocyte Function

Autor: Lisa Felix, Andrea Delekate, Gabor C. Petzold, Christine R. Rose

Publikováno v: Frontiers in Physiology, Vol 11 (2020)

Astrocytes are the main cell type responsible for the regulation of brain homeostasis, including the maintenance of ion gradients and neurotransmitter clearance. These processes are tightly coupled to changes in the intracellular sodium (Na+) concent

Externí odkaz: https://doaj.org/article/eb73d4fea41f4a47aa456268a5a64ae5

Double-Tuned Birdcage Radio Frequency Coil for 7 T MRI: Optimization, Construction and Workbench Validation

Autor: Alessandra Retico, Francesca Maggiorelli, Giulio Giovannetti, Eddy Boskamp, Fraser Robb, Marco Fantasia, Angelo Galante, Marcello Alecci, Gianluigi Tiberi, Michela Tosetti

Publikováno v: Electronics; Volume 12; Issue 4; Pages: 901

The aim of the present study is the optimization, construction, and workbench validation of a double-tuned 1H- 23Na volume radio frequency (RF) coil suitable for human head imaging at 7 T, based on the birdcage geometry. The birdcage-like design whic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa88bc9cc3b14b25528d1adfd80564f4
https://hdl.handle.net/11697/201139

Clinically feasible B 1 field correction for multi‐organ sodium imaging at 3 T

Autor: Michael Vaeggemose, Rolf F. Schulte, Christoffer Laustsen

Publikováno v: Vaeggemose, M, Schulte, R F & Laustsen, C 2023, ' Clinically feasible B1 field correction for multi-organ sodium imaging at 3T ', NMR in Biomedicine, vol. 36, no. 2, e4835 . https://doi.org/10.1002/nbm.4835

Sodium MRI allows the non-invasive quantification of intra-organ sodium concentration. Radiofrequency inhomogeneity introduces uncertainty in this estimated concentration. B1 field corrections can be used to overcome some of these limitations. Howeve

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4079bcb5dcfbf856ee74579fcc44fa30
https://doi.org/10.1002/nbm.4835

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