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Related Experiment Videos

Secundum atrial septal defect is a dynamic three-dimensional entity.

A Dall'Agata1, J McGhie, M A Taams

  • 1Departments of Cardiothoracic Surgery, Cardiology, and Pediatric Cardiology, Erasmus Medical Center Rotterdam, The Netherlands.

American Heart Journal
|May 29, 1999
PubMed
Summary

Three-dimensional (3D) echocardiography offers superior insights into the complex anatomy and dynamic geometry of secundum atrial septum defects (ASD2) compared to 2D methods. This advanced imaging may aid in selecting devices for transcatheter closure.

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Area of Science:

  • Cardiovascular Imaging
  • Echocardiography
  • Congenital Heart Disease

Background:

  • Secundum atrial septum defects (ASD2) present complex morphological challenges.
  • Accurate anatomical assessment is crucial for effective treatment planning.
  • Standard 2D echocardiography has limitations in fully characterizing ASD2.

Purpose of the Study:

  • To evaluate the diagnostic relevance of 3D echocardiography for ASD2 assessment.
  • To compare 3D echocardiography findings with surgical outcomes.
  • To determine the utility of 3D echocardiography in guiding device selection for ASD2 closure.

Main Methods:

  • Twenty-three patients with ASD2 underwent transthoracic or transesophageal 3D echocardiography prior to surgical repair.
  • Qualitative (location, shape, structure) and quantitative (diameters) ASD2 characteristics were analyzed.

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  • 3D data sets were compared with surgical findings; intraobserver and interobserver variability were assessed.

    • Main Results:

    • 3D echocardiography accurately depicted ASD2 gross anatomy in most patients (21/23).
    • Dynamic changes in ASD2 geometry throughout the cardiac cycle were visualized.
    • 3D echocardiography demonstrated good correlation for diameter measurements and showed improved agreement with surgical measurements compared to 2D echocardiography.

    Conclusions:

    • 3D echocardiography provides enhanced qualitative and quantitative data on ASD2 dynamic geometry, location, and extension.
    • It offers superior insights compared to standard 2D echocardiography.
    • 3D echocardiography shows potential utility in device selection for catheter-based ASD2 closure.