Abstract
Magnetic resonance imaging (MRI) is the most sensitive technique for detecting inflammatory demyelinating lesions in multiple sclerosis (MS) and plays a crucial role in diagnosis and monitoring treatment effectiveness, and for predicting the disease course. In clinical practice, detection of MS lesions is mainly based on T2-weighted and contrast-enhanced T1-weighted sequences. Contrast-enhancing lesions (CEL) on T1-weighted sequences are related to (sub)acute inflammation, while new or enlarging T2 lesions reflect the permanent footprint from a previous acute inflammatory demyelinating event. These two types of MRI features provide redundant information, at least in regular monitoring of the disease. Due to the concern of gadolinium deposition after repetitive injections of gadolinium-based contrast agents (GBCAs), scientific organizations and regulatory agencies in Europe and North America have proposed that these contrast agents should be administered only if clinically necessary. In this article, we provide data on the mode of action of GBCAs in MS, the indications of the use of these agents in clinical practice, their value in MS for diagnostic, prognostic, and monitoring purposes, and their use in specific populations (children, pregnant women, and breast-feeders). We discuss imaging strategies that achieve the highest sensitivity for detecting CELs in compliance with the safety regulations established by different regulatory agencies. Finally, we will briefly discuss some alternatives to the use of GBCA for detecting blood–brain barrier disruption in MS lesions.
Clinical relevance statement
Although use of GBCA at diagnostic workup of suspected MS is highly valuable for diagnostic and prognostic purposes, their use in routine monitoring is not mandatory and must be reduced, as detection of disease activity can be based on the identification of new or enlarging lesions on T2-weighted images.
Key Points
• Both the EMA and the FDA state that the use of GBCA in medicine should be restricted to clinical scenarios in which the additional information offered by the contrast agent is required.
• The use of GBCA is generally recommended in the diagnostic workup in subjects with suspected MS and is generally not necessary for routine monitoring in clinical practice.
• Alternative MRI-based approaches for detecting acute focal inflammatory MS lesions are not yet ready to be used in clinical practice.
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Abbreviations
- ADC:
-
Apparent diffusion coefficient
- CEL:
-
Contrast-enhancing lesion
- CMSC:
-
Consortium of Multiple Sclerosis Centers
- DMT:
-
Disease-modifying treatment
- DTI:
-
Diffusion tensor imaging
- DWI:
-
Diffusion-weighted imaging
- EMA:
-
European Medicines Agency
- EPI:
-
Echo planar imaging
- ESMRMB:
-
European Society for Magnetic Resonance in Medicine and Biology
- ESNR:
-
European Society of Neuroradiology
- FA:
-
Fractional anisotropy
- FDA:
-
Food and Drug Administration
- FLAIR:
-
Fluid-attenuated inversion recovery
- GBCA:
-
Gadolinium-based contrast agent
- GRE:
-
Gradient-recalled echo
- GREC:
-
Gadolinium Research & Education Committee
- MAGNIMS:
-
Magnetic resonance imaging in MS
- MRI:
-
Magnetic resonance imaging
- MS:
-
Multiple sclerosis
- NAIMS:
-
North American Imaging in Multiple Sclerosis
- PML:
-
Progressive multifocal leukoencephalopathy
- SE:
-
Spin-echo
- T1w:
-
T1-weighted
- T2w:
-
T2-weighted
- TSE/FSE:
-
Turbo/fast spin-echo
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Acknowledgements
The ESMRMB-GREC (Gadolinium Research & Education Committee) is a group of multidisciplinary ESMRMB members, including clinicians, scientists, chemists, physicists, pathologists, and clinical epidemiologists who all share a common interest in the study of gadolinium-based contrast agents in a wide variety of clinical and preclinical conditions. The list of authors includes ESMRMB-GREC members (A. R., F. M. D.; A. J. M., C. A. M., C. A., C. Q.) and members of the Multiple Sclerosis Working Group of the European Society of Neuroradiology (ESNR) (A. R., L. H., J. H., M. S., M. P. W., B. J., T. Y.), who have written, revised and approved the final version of the manuscript
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(a) Àlex Rovira serves/ed on scientific advisory boards for Novartis, Sanofi-Genzyme, Icometrix, SyntheticMR, Bayer Healthcare, Biogen, and OLEA Medical, and has received speaker honoraria from Bayer Healthcare, Sanofi-Genzyme, Bracco Imaging, Merck-Serono, Teva Pharmaceutical Industries Ltd, Novartis, Roche, and Biogen.
(b) Fabio Doniselli, Cristina Auger, Jérôme Hodel, Mariasavina Severino, Bas Jasperse, Tarek Yousry, and Carlo Augusto Mallio do not have any conflict of interest to disclosure.
(c) Lukas Haider was supported by an ESNR (European Society of Neuro-Radiology) Research Fellowship and the ECTRIMS-MAGNIMS Research Fellowship and received funding from the Austrian MS Society.
(d) M. P. Wattjes received speaker or consultancy honoraria from Alexion, Bayer Healthcare, Biogen, Biologix, Celgene, Genilac, Imcyse, IXICO, Icometrix, Medison, Merck-Serono, Novartis, Roche, and Sanofi-Genzyme; publication royalties from Springer and Elsevier.
(e) A. J. van der Molen receives consultancy fees from Guerbet as a member of the Expert Group for Gadopiclenol in The Netherlands. He is a member of the ESUR-CMSC whose 2-yearly meetings have received support from Bayer Healthcare, Bracco Imaging, GE HealthCare, and Guerbet.
(f) Carlo Cosimo Quattrocchi has signed speaker contracts with Bayer Healthcare, Bracco Imaging, and Guerbet. He is co-chair of the ESMRMB-GREC Working Group whose yearly meetings have received unconditional support from Bayer Healthcare, Bracco Imaging, GE HealthCare, and Guerbet. He is a member of the ESUR-CMSC whose 2-yearly meetings have received support from Bayer Healthcare, Bracco Imaging, GE HealthCare, and Guerbet.
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Rovira, À., Doniselli, F.M., Auger, C. et al. Use of gadolinium-based contrast agents in multiple sclerosis: a review by the ESMRMB-GREC and ESNR Multiple Sclerosis Working Group. Eur Radiol 34, 1726–1735 (2024). https://doi.org/10.1007/s00330-023-10151-y
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DOI: https://doi.org/10.1007/s00330-023-10151-y