Open AccessCardiac T2* magnetic resonance analysis of membranous interventricular septum in assessment of cardiac iron overload in pediatric thalassemia patients: A pilot study
Author(s) -
Ishan Kumar,
Priyanka Aggarwal,
Vineeta Gupta,
Ashish Verma,
Suren Kumar,
Ram Chandra Shukla
Publication year - 2019
Publication title -
indian journal of radiology and imaging - new series/indian journal of radiology and imaging/indian journal of radiology and imaging
Language(s) - English
Resource type - Journals
eISSN - 0971-3026
pISSN - 0970-2016
DOI - 10.4103/ijri.ijri_395_18
Subject(s) - interventricular septum , medicine , magnetic resonance imaging , thalassemia , cardiology , cardiac magnetic resonance imaging , cardiac magnetic resonance , correlation , radiology , geometry , mathematics , ventricle
Background: Cardiac iron deposition in transfusion-dependent thalassemia patients is patchy in distribution. Purpose: The purpose of this study is to assess the correlation between T2* matrices of membranous interventricular septum (MIVS) and T2* values of muscular interventricular septum (IVS) on magnetic resonance imaging (MRI) and to evaluate the relationship of myocardial T2* at these two locations with MRI-estimated liver iron concentrations (LIC) and electrocardiographic (ECG) parameters. Material and Methods: MRI of heart and liver was performed in 16 consecutive pediatric patients of transfusion-dependent thalassemia major to calculate liver iron concentration and T2* time of membranous and muscular IVS. ECG parameters of these patients were charted and correlated with MRI parameters. Results: No significant correlation between T2* values of muscular IVS and MIVS was observed. Mean T2* of MIVS (9.8 ms) was significantly lower than that of muscular IVS (26.9 ms). T2* of MIVS correlated strongly with LIC where as a weak correlation was observed between T2* of IVS and LIC. Significantly higher mean QTc (corrected QT interval) value (439.86 ms) was seen in patients with T2* IVS <20 ms. Conclusion: Addition of T2* analysis of MIVS to the existing MRI protocol, consisting of muscular IVS analysis, may offer a more sensitive estimation of cardiac iron overload.