Characterization of chronic active multiple sclerosis lesions with sodium (23Na) magnetic resonance imaging: preliminary observations
Background and purpose There has been an increasing interest in chronic active multiple sclerosis (MS) lesions as a new magnetic resonance imaging (MRI) marker of disease progression. Chronic active lesions are characterized by progressive tissue matrix damage, axonal loss and chronic inflammation....
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| Hauptverfasser: | , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
2021
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| In: |
EMJ neurology
Year: 2021, Jahrgang: 28, Heft: 7, Pages: 2392-2395 |
| ISSN: | 2054-4529 |
| DOI: | 10.1111/ene.14873 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1111/ene.14873 Verlag, kostenfrei, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1111/ene.14873 
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| Verfasserangaben: | Philipp Eisele, Matthias Kraemer, Andreas Dabringhaus, Claudia E. Weber, Anne Ebert, Michael Platten, Lothar R. Schad, Achim Gass |
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| 245 | 1 | 0 | |a Characterization of chronic active multiple sclerosis lesions with sodium (23Na) magnetic resonance imaging |b preliminary observations |c Philipp Eisele, Matthias Kraemer, Andreas Dabringhaus, Claudia E. Weber, Anne Ebert, Michael Platten, Lothar R. Schad, Achim Gass |
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| 520 | |a Background and purpose There has been an increasing interest in chronic active multiple sclerosis (MS) lesions as a new magnetic resonance imaging (MRI) marker of disease progression. Chronic active lesions are characterized by progressive tissue matrix damage, axonal loss and chronic inflammation. Sodium (23Na) MRI provides a biochemical marker of cell integrity and tissue viability in a quantitative manner. The aim of this study was to investigate with 23Na MRI tissue abnormalities in chronic active lesions as indicators of tissue destruction. Methods To identify chronic active lesions, two 3D magnetization-prepared rapid acquisition gradient-echo datasets obtained 12 months apart were processed using the voxel-guided morphometry algorithm. Cross-sectional 23Na MRI was performed during the 12-month follow-up period. Total sodium concentration was calculated in chronic active lesions compared to shrinking, chronic stable and acute contrast-enhancing lesions. Results Overall, 70 MS lesions (21 chronic active, 10 shrinking, 29 chronic stable lesions, 10 acute contrast-enhancing lesions) in 12 patients were included. Total sodium concentration in chronic active lesions (49.57 ± 8.47 mM) was significantly higher than in shrinking (42.16 ± 3.9 mM; p = 0.03) and chronic stable lesions (39.92 ± 4.82 mM; p < 0.001). Chronic active lesions showed similar sodium values compared to acute contrast-enhancing lesions (48.06 ± 6.65 mM; p = 0.97). No differences between shrinking and chronic stable lesions were observed (p = 0.89). Conclusion High sodium values in chronic active MS lesions may be an indicator of ongoing inflammation and tissue damage. | ||
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