CONCLUSION

Our study provides preliminary reference ranges for the end-diastolic RVOT diameter in the strict transverse and sagittal views by CMR in children and adolescents. Despite their strong correlation with the similar 2D TTE PSAX and PLAX views, there is poor agreement between these CMR and echocardiographic measurements. As a result, the static bSSFP CMR images in the strict transverse and sagittal views cannot be used to define RVOT dilatation in pediatric patients.