Value of magnetic resonance imaging T2* tests in detecting heart and liver iron overload in patients with β-thalassemia major / 南方医科大学学报
Journal of Southern Medical University
;
(12): 249-252, 2013.
Article
Dans Chinois
| WPRIM
| ID: wpr-322071
ABSTRACT
<p><b>OBJECTIVE</b>To assess the value of magnetic resonance imaging T2* tests in the detection of myocardial and liver iron overload in patients with β-thalassemia major (β-TM).</p><p><b>METHODS</b>From 2010 to 2011, 28 β-TM patients over 10 years old under blood transfusion therapy and chelation care with serum ferritin (SF)>1000 µg/L underwent myocardial and liver MRI T2* tests on a voluntary basis. The results were analyzed in relation with age, SF, and left ventricular ejection fraction (LVEF).</p><p><b>RESULTS</b>Fourteen out of the 28 cases (50%) were found to have myocardial iron overload, including 7 severe cases, 2 moderate cases, and 5 mild cases. All the 28 cases had liver iron overload, including 2 mild cases, 7 moderate cases, and 19 severe cases. Two out of the 28 cases had lowered LVEF (7.14%), and one of them had severe myocardial iron overload. There was a negative correlation between myocardial MRI T2* and SF (r=-0.479, P=0.01). Myocardial MRI T2* was positively correlated with liver MRI T2* (r=0.378, P=0.047). Age was not significantly correlated with SF, LVEF, or liver MRI T2*.</p><p><b>CONCLUSION</b>Magnetic resonance imaging (T2*) detection is an effective and non-invasive means for detecting myocardial and liver iron overload in patients with β-thalassemia major receiving blood transfusion. T2* combined with SF is the main diagnostic indicator to assess iron overload in the vital organs.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Anatomopathologie
/
Sang
/
Imagerie par résonance magnétique
/
Bêta-Thalassémie
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Surcharge en fer
/
Diagnostic
/
Ferritines
/
Fer
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Foie
/
Métabolisme
Type d'étude:
Etude diagnostique
Limites du sujet:
Adolescent
/
Adulte
/
Enfant
/
Femelle
/
Humains
/
Mâle
langue:
Chinois
Texte intégral:
Journal of Southern Medical University
Année:
2013
Type:
Article
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