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MR imaging assessment and quantification of liver iron

  • Special Section: chronic liver disease
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Abstract

Iron overload is a common clinical problem resulting from hereditary hemochromatosis or secondary hemosiderosis (mainly associated with transfusion therapy), being also associated with chronic liver diseases and metabolic disorders. Excess of iron accumulates in organs like the liver, pancreas and heart. Without treatment, patients with iron overload disorders will develop liver cirrhosis, diabetes and cardiomyopathy. Iron quantification is therefore crucial not only for diagnosis of iron overload but also to monitor iron-reducing therapies. Liver iron concentration is considered the surrogate marker of total body iron stores. Because liver biopsy is invasive and prone to high variability and sampling bias, MR imaging has emerged as a non-invasive method and gained wide acceptance, now being considered the standard of care for assessing iron overload. Nevertheless, there are different MR techniques for iron quantification and there is still no consensus about the best technique or postprocessing tool for hepatic iron quantification, with the choice of imaging technique depending mainly on the local expertise as well on the available equipment and software. Because different methods should not be used interchangeably, it is important to choose one method and use the same one when following up patients over time.

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  1. Radiology Department - Centro Hospitalar Universitário do Porto, Largo Prof Abel Salazar, 4099-001, Porto, Portugal

    Manuela França & João Gomes Carvalho

  2. Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, I3S, Instituto de Investigação e Inovação em Saúde, Porto, Portugal

    Manuela França

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MF had the idea for the article, JGC and MF performed the literature search and data analysis, MF drafted the work and both authors critically revised the work and approved the final version.

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França, M., Carvalho, J.G. MR imaging assessment and quantification of liver iron. Abdom Radiol 45, 3400–3412 (2020). https://doi.org/10.1007/s00261-020-02574-8

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