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

作者: Jane S. Hankins , M. Beth McCarville , Ralf B. Loeffler , Matthew P. Smeltzer , Mihaela Onciu

DOI: 10.1182/BLOOD-2008-12-191643

关键词: Liver Iron ConcentrationBiopsyBone marrow failureNuclear medicineIntraclass correlationSickle cell anemiaLiver biopsyMagnetic resonance imagingMedicinePathologyFerritin

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

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