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Updated: Jun 6, 2026

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure
Published on: February 8, 2022
Cardiac CT of non-shunt pathology of the interatrial septum
Carlos A Rojas1, Camilo E Jaimes, Ahmed H El-Sherief
1Department of Cardiac Imaging, Massachusetts General Hospital, Harvard Medical School, 165 Cambridge Street, Boston, MA 02114, USA. caranrojas@gmail.com
Abstract:
The development and anatomy of the interatrial septum is complex. With the increasing use of cardiac CT and its precise delineation of the anatomy, it is important for the cardiac imager to become familiar with the normal anatomic structures that compose the interatrial septum and their variants. Furthermore, it is important to recognize pathologic processes occurring in this region other than atrial septal defects and potential imaging pitfalls. This pictorial essay provides a detailed review of these topics with emphasis in CT appearance and related technical aspects.
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