Expert Recommendations on Cardiac Computed Tomography for Planning Transcatheter Left Atrial Appendage Occlusion
Related Experiment Video
Updated: Jan 4, 2026

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure
Published on: February 8, 2022
Kasper Korsholm1, Sergio Berti2, Xavier Iriart3
1Department of Cardiology, Aarhus University Hospital, Aarhus Denmark.
Insights
Transcatheter left atrial appendage occlusion requires pre-procedural imaging. This paper proposes a standardized cardiac computed tomography protocol to improve imaging quality and guide left atrial appendage occlusion procedures.
Area of Science:
- Cardiovascular Imaging
- Interventional Cardiology
Background:
- Transcatheter left atrial appendage occlusion is an alternative to anticoagulation for atrial fibrillation.
- Transesophageal echocardiography is the current standard for pre-procedural imaging.
- Cardiac computed tomography (CT) offers advanced imaging capabilities but lacks standardized protocols.
Purpose of the Study:
- To establish a standardized protocol for cardiac CT in pre-procedural planning of left atrial appendage occlusion.
- To optimize the use of cardiac CT for improved imaging and procedural success.
Main Methods:
- Review of current research and expert consensus on cardiac CT for left atrial appendage occlusion.
- Development of a protocol covering preparation, acquisition, and interpretation of cardiac CT images.
Main Results:
- The proposed protocol standardizes cardiac CT imaging for left atrial appendage occlusion.
- It aims to enhance image quality and facilitate accurate pre-procedural planning.
Conclusions:
- A standardized cardiac CT protocol is essential for widespread adoption in left atrial appendage occlusion procedures.
- This protocol will aid clinicians in utilizing cardiac CT for successful interventions.
Abstract:
Transcatheter left atrial appendage occlusion is an increasingly used alternative to oral anticoagulation in selected patients with atrial fibrillation. Pre-procedural imaging is a prerequisite to a successful intervention, with transesophageal echocardiography as the current gold standard. However, cardiac computed tomography offers improved imaging with high-quality multiplanar and 3-dimensional reconstructed images. Nevertheless, the lack of a standardized imaging protocol has slowed the adoption of cardiac computed tomography into clinical practice. On the basis of current research and expert consensus, this paper provides a protocol for the preparation, acquisition, and interpretation of cardiac computed tomographic imaging in pre-procedural planning of left atrial appendage occlusion.
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