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Comprehensive echocardiographic imaging of the atrioventricular valves in children with atrioventricular septal defect: accuracy of 2D and 3D imaging and reasons for disagreements [Anatol J Cardiol]
Anatol J Cardiol. Ahead of Print: AJC-49376 | DOI: 10.14744/AnatolJCardiol.2019.49376  

Comprehensive echocardiographic imaging of the atrioventricular valves in children with atrioventricular septal defect: accuracy of 2D and 3D imaging and reasons for disagreements

Nina Hakacova1, Thomas Higgins1, Torsten Malm1, Per Wierup1, Jens Ramgren Johansson1, Charles Maynard2
1Children´s Heart Centre, Skane University Hospital, Lund, Sweden
2Department of Health Services University of Washington Seattle, Washington (USA)

Objectives: To compare the accuracy and reasons for disagreements of the 2D and 3D echocardiography in assessment of the atrioventricular-valve complex in patients with atrioventricular septal defect.
Methods: 20 children (mean age 8 months) with atrioventricular septal defect were enrolled prospectively. Pre-surgical and surgical assessments were compared for both 2D and 3D. Accuracy was compared between 2D and 3D imaging. Reasons for disagreements were defined by reanalysis of the preoperative examination by both cardiologist and surgeon.
Results: We found, that in assessing Rastelli type and in assessing extension of the inferior leaflet into the right ventricle, the 3D echocardiography is more accurate compared to 2D echocardiography. In all other features, the 2D and 3D showed similar accuracy. Significant reason for inaccuracy by both echo modalities was the impossibility to visualize that particular feature. In most cases where it was not possible to visualize the particular feature by 2D, it was possible by 3D and vice versa.
Conclusions: Accuracy of 2D and 3D echocardiography and understanding the potential reasons for disagreements in assessing the AV-valve complex with 2D and 3D can guide the use of those two techniques when combining them in the clinical practice.

Keywords: 3D-echocardiography, 2D echocardiography, Atrioventricular septal defect, accuracy, congenital heart disease




Corresponding Author: Nina Hakacova, Sweden


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