R2* magnetic resonance imaging of the liver in patients with iron overload

Jane S. Hankins, M. Beth McCarville, Ralf B. Loeffler, Matthew P. Smeltzer, Mihaela Onciu, Fredric A. Hoffer, Chin-Shang Li, Winfred C. Wang, Russell E. Ware, Claudia M. Hillenbrand

Research output: Contribution to journalArticle

219 Scopus citations

Abstract

R2* magnetic resonance imaging (R2*-MRI) can quantify hepatic iron content (HIC) by noninvasive means but is not fully investigated. Patients with iron overload completed 1.5T R2*-MRI examination and liver biopsy within 30 days. Fortythree patients (sickle cell anemia, n = 32; β-thalassemia major, n = 6; and bone marrow failure, n = 5) were analyzed: median age, 14 years, median transfusion duration, 15 months, average (±SD) serum ferritin 2718 plus or minus 1994 ng/mL, and average HIC 10.9 plus or minus 6.8 mg Fe/g dry weight liver. Regions of interest were drawn and analyzed by 3 independent reviewers with excellent agreement of their measurements (intraclass correlation coefficient = 0.98). Ferritin and R2*-MRI were weakly but significantly associated (range of correlation coefficients among the 3 reviewers, 0.41-0.48; all P < .01). R2*-MRI was strongly associated with HIC for all 3 reviewers (correlation coefficients, 0.96-0.98; all P < .001). This high correlation confirms prior reports, calibrates R2*-MRI measurements, and suggests its clinical utility for predicting HIC using R2*-MRI. This study was registered at www.clinicaltrials.gov as #NCT00675038.

Original languageEnglish (US)
Pages (from-to)4853-4855
Number of pages3
JournalBlood
Volume113
Issue number20
DOIs
StatePublished - 2009
Externally publishedYes

ASJC Scopus subject areas

  • Hematology
  • Biochemistry
  • Cell Biology
  • Immunology

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    Hankins, J. S., McCarville, M. B., Loeffler, R. B., Smeltzer, M. P., Onciu, M., Hoffer, F. A., Li, C-S., Wang, W. C., Ware, R. E., & Hillenbrand, C. M. (2009). R2* magnetic resonance imaging of the liver in patients with iron overload. Blood, 113(20), 4853-4855. https://doi.org/10.1182/blood-2008-12-191643