Article ; Online: Utilização de Gadolínio nas Ressonâncias Magnéticas de Controlo em Doentes com Esclerose Múltipla: Recomendações Atuais.
2024 Volume 37, Issue 1, Page(s) 53–63
Abstract: Multiple sclerosis is the most frequent demyelinating disease of the central nervous system and is characterized by early onset and progressive disability. Magnetic resonance imaging, due to its high sensitivity and specificity in the detection of ... ...
| Title translation | Use of Gadolinium in Follow-Up MRI of Multiple Sclerosis Patients: Current Recommendations. |
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| Abstract | Multiple sclerosis is the most frequent demyelinating disease of the central nervous system and is characterized by early onset and progressive disability. Magnetic resonance imaging, due to its high sensitivity and specificity in the detection of demyelinating lesions, is the most useful diagnostic test for this disease, with the administration of gadolinium-based contrast agents being an important contribution to imaging interpretation. Although contrast is essential for diagnostic purposes, its routine use in monitoring disease activity, response to treatment, and related complications is controversial. This article aims to collate current recommendations regarding the use of gadolinium in the imaging follow-up of multiple sclerosis and establish effective and safe guidelines for clinical practice. The literature review was conducted in PubMed, using the terms 'multiple sclerosis', 'magnetic resonance imaging' and 'gadolinium', or 'contrast media'. Articles published between January 2013 and January 2023 concerning the safety of gadolinium and the use of these contrast agents in follow-up scans of adult patients diagnosed with multiple sclerosis were selected. Although no biological or clinical consequences have been unequivocally attributed to the retention of gadolinium in the brain, which were mostly reported with linear agents, health authorities have been recommending the restriction of contrast to essential clinical circumstances. In multiple sclerosis, the detection of subclinical contrast-enhancing lesions with no corresponding new/ enlarging T2-WI lesions is rare and has a questionable impact on therapeutic decisions. On the other hand, gadolinium has a higher sensitivity in the differential diagnosis of relapses, in the detection of recent disease activity, before and after treatment initiation, and in patients with a large lesion burden or diffuse/confluent T2-WI lesions. Contrary to progressive multifocal leukoencephalopathy screening, monitoring of immune restitution inflammatory syndrome also benefits from the administration of gadolinium. It is feasible and safe to exclude gadolinium-based contrast agents from routine follow-up scans of multiple sclerosis, despite their additional contribution in specific clinical circumstances that should be acknowledged by the neurologist and neuroradiologist. |
| MeSH term(s) | Adult ; Humans ; Multiple Sclerosis/diagnostic imaging ; Gadolinium/adverse effects ; Contrast Media/adverse effects ; Follow-Up Studies ; Magnetic Resonance Imaging |
| Chemical Substances | Gadolinium (AU0V1LM3JT) ; Contrast Media |
| Language | Portuguese |
| Publishing date | 2024-01-03 |
| Publishing country | Portugal |
| Document type | Review ; English Abstract ; Journal Article |
| ZDB-ID | 603078-6 |
| ISSN | 1646-0758 ; 0870-399X |
| ISSN (online) | 1646-0758 |
| ISSN | 0870-399X |
| DOI | 10.20344/amp.20467 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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