23 Na MRI reveals persistent sodium accumulation in tumefactive MS lesions
| Autor: | Konstantin Huhn, Nicola Kästle, Franz Tschunko, Armin M. Nagel, Ralf A. Linker, Arnd Dörfler, Michael Uder, Tobias Engelhorn, Peter Linz, Angelika Mennecke |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Pathology
medicine.medical_specialty medicine.diagnostic_test business.industry Multiple sclerosis Sodium chemistry.chemical_element Magnetic resonance imaging medicine.disease 030218 nuclear medicine & medical imaging Lesion 03 medical and health sciences 0302 clinical medicine Neurology chemistry Neuroimaging Edema medicine Sodium MRI Neurology (clinical) Differential diagnosis medicine.symptom business 030217 neurology & neurosurgery |
| Zdroj: | Journal of the Neurological Sciences. 379:163-166 |
| ISSN: | 0022-510X |
| Popis: | Background Chronic inflammatory demyelinating diseases of the CNS typically show a limited lesion size. However, extended lesions may appear with an atypical configuration. Large lesions with a diameter > 2 cm accompanied by tumor-like edema are entitled “tumefactive” and may occur in multiple sclerosis (MS) and other demyelinating diseases. Historically, differential diagnosis often requires histological analysis. Therefore, advanced imaging techniques are warranted to allow for a precise non-invasive diagnosis. Cerebral sodium ( 23 Na) MRI was recently described as a new method to investigate in vivo sodium accumulation. Indicating extended sodium levels in MS lesions, 23 Na MRI is a promising differential diagnostic tool further elucidating the role of sodium in demyelinating lesions. Methods Repetitive 23 Na MRI measurements in a MS patient with a tumefactive demyelinating lesion providing insight into the medium-term course of cerebral sodium levels. Results and conclusion 23 Na MRI depicts persistent lesional sodium accumulation after anti-inflammatory treatment and provides the opportunity of a non-invasive, in vivo analysis of sodium levels in inflammatory CNS lesions without need for contrast enhancing media. As a result of the extended dimension, tumefactive lesions may have an appropriate size for the analysis of inflammatory demyelination by 23 Na MRI with sufficient resolution. |
| Databáze: | OpenAIRE |
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