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Quantification of severe liver iron overload using MRI offset echoes

Henric Rydén1, Mikael Skorpil2

  • 1Department of Medical Physics, Karolinska University Hospital, Stockholm, Sweden.

Acta Radiologica Open
|June 11, 2015
PubMed

Insights

Magnetic resonance imaging (MRI) using offset echo sequences accurately estimates severe liver iron overload. This method improved monitoring of treatment effectiveness, unlike standard MRI techniques.

Area of Science:

  • Radiology and Medical Imaging
  • Hepatology
  • Biomarkers of Iron Metabolism

Background:

  • Magnetic resonance imaging (MRI) is the standard for assessing liver iron overload.
  • Multi gradient recalled echo (MGRE) sequences measuring T2* are commonly used.
  • MGRE T2* accuracy diminishes with severe liver iron concentrations.

Observation:

  • A case of severe liver hemochromatosis presented diagnostic challenges with standard MRI.
  • An easily implemented MRI offset echo sequence was utilized for improved accuracy.
  • This novel sequence provided a more precise estimation of liver iron concentration (LIC).

Findings:

  • The offset echo sequence accurately quantified severe liver iron overload.
  • Treatment adjustments led to decreased ferritin and LIC.
  • These reductions were undetectable using the standard MGRE T2* method.

Implications:

  • Offset echo MRI offers a more accurate method for severe liver iron overload assessment.
  • Improved LIC monitoring can optimize hemochromatosis treatment.
  • This technique enhances clinical management of iron metabolism disorders.
Keywords:
Abdomen/GIadults and pediatricsimaging sequenceslivermagnetic resonance imaging (MRI)

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