ArticleNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2025
Dynamic 18 F-FDG PET to detect differences among patients with progressive and relapsing multiple sclerosis: a pilot study.
Article in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.
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- Erratum issued
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12 authors.
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Abstract
backgroundPatients with multiple sclerosis (MS) may remain in a relapsing-remitting (RRMS) course despite long-standing disease, while others will develop secondary progression (SPMS). Chronic inflammation and changes in the blood-brain barrier resulting in perturbed glucose metabolism may account for these differences. PET-MRI with kinetic analysis of 2-deoxy-2(18 F)fluoro-d-glucose (18 F-FDG) provides insight into glucose metabolism and has proven useful in several chronic inflammatory diseases. However, to our knowledge, it has never been studied in MS.
objectiveTo explore potential differences in glucose distribution kinetics among individuals with long-standing SPMS and RRMS using dynamic 18-F-FDG PET-MRI.
methodsDynamic 18-F-FDG PET-MRI scans were obtained in 11 patients with long-standing MS: 4 with RRMS and 7 with SPMS. Kinetic analysis of PET data was performed using a three-compartment model equation that represents plasma, tissue and 18 F-FDG phosphorylation. Individual rate constants of 18-F-FDG across the compartments were calculated.
resultsPatients with SPMS exhibited a trend towards an increased net influx rate of glucose (p = 0.059) and an increased rate constant representing glucose phosphorylation. Together, the data suggest increased uptake of glucose and glycolysis in these patients.
conclusionDynamic 18 F-FDG PET-MRI is a feasible technique that may show information in vivo of glucose metabolism in MS. Although preliminary data suggest a potential radiological marker of progression in MS, further studies are required to confirm this hypothesis.
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