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Echocardiography versus cardiac magnetic resonance imaging in evaluating right ventricle systolic function in paediatric patients with repaired tetralogy of Fallot

Published online by Cambridge University Press:  18 August 2025

Hossam Elmontaser ,
Hala Elmarsafawy ,
Ahmed Shabana ,
Rehab Elnagar  and
Doaa El Amrousy Open the ORCID record for Doaa El Amrousy [Opens in a new window]
Hossam Elmontaser
Affiliation:
Pediatric Department, Faculty of Medicine, Tanta University, Tanta, Egypt
Hala Elmarsafawy
Affiliation:
Pediatric Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt Faculty of Medicine, New Mansoura University, New Mansoura, Egypt
Ahmed Shabana
Affiliation:
Pediatric Department, Faculty of Medicine, Tanta University, Tanta, Egypt
Rehab Elnagar
Affiliation:
Diagnostic Radiology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
Doaa El Amrousy*
Affiliation:
Pediatric Department, Faculty of Medicine, Tanta University, Tanta, Egypt
*
Corresponding author: Doaa El Amrousy; E-mail: doaamoha@yahoo.com
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Abstract

Background:

Right ventricular dysfunction is a common complication after surgical correction of tetralogy of Fallot. The assessment of right ventricular systolic function using cardiac magnetic resonance is the gold method. Our study aimed to compare the diagnostic accuracy of echocardiographic parameters in identifying right ventricular systolic dysfunction in comparison to cardiac magnetic resonance in children with repaired tetralogy of Fallot.

Patients and methods:

Fifty-six patients with corrected tetralogy of Fallot were included in the study. Right ventricular fractional area change, Tricuspid annular plane systolic excursion, right ventricular peak systolic tricuspid annular velocity, two-dimensional right ventricular global longitudinal strain, and two-dimensional right ventricular free wall strain were measured using echocardiography. Right ventricular ejection fraction and pulmonary regurgitant fraction were assessed using cardiac magnetic resonance.

Results:

Twenty (35.7%) patients showed right ventricular systolic dysfunction using cardiac magnetic resonance-derived right ventricular ejection fraction%, while 36 patients had normal right ventricular systolic function. Patients with right ventricular systolic dysfunction had significantly lower right ventricular fractional area change, tricuspid annular plane systolic excursion, right ventricular S’, 2D-right ventricular global longitudinal strain, 2D-right ventricular free wall strain compared to those with normal right ventricular systolic function. Right ventricular ejection fraction% was directly correlated to tricuspid annular plane systolic excursion, right ventricular fractional area change, right ventricular S’, 2D-right ventricular global longitudinal strain, and 2D-right ventricular free wall strain. Receiver operating characteristic curve revealed that 2D-right ventricular free wall strain and 2D-right ventricular global longitudinal strain had 70% sensitivity, 94.4% specificity, and 85% predictive accuracy, while right ventricular S’ and RV fractional area change had 100 % sensitivity in detection of right ventricular dysfunction, but they showed lower specificity, 30.6% and 52.8% respectively.

Conclusion:

2D-right ventricular global longitudinal strain and 2D-right ventricular FWL have good diagnostic value for right ventricular systolic dysfunction comparable to cardiac magnetic resonance in children with repaired tetralogy of Fallot.

Keywords

repaired TOFCMRSTERV functionchildren

Information

Type
Original Article
Information
Cardiology in the Young , Volume 35 , Issue 9 , September 2025 , pp. 1899 - 1905
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Copyright
© The Author(s), 2025. Published by Cambridge University Press

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