Computed Tomography for Left Atrial Appendage Occlusion Case Planning

Area of Science:

• Cardiology
• Interventional Radiology
• Medical Imaging

Background:

• Atrial fibrillation poses a high risk of thromboembolism.
• Effective anticoagulation is not suitable for all patients.
• Left atrial appendage (LAA) occlusion is an alternative thromboprophylaxis strategy.

Purpose of the Study:

• To review the evidence for computed tomography (CT) in endovascular LAA occlusion.
• To assess the clinical impact of CT on LAA occlusion procedures.

Main Methods:

• Utilizing CT for accurate LAA dimensions and morphology assessment.
• Employing CT to predict optimal radiograph gantry angles.
• Creating physical models from CT data for ex vivo device and catheter fitting.

Main Results:

• CT enables precise pre-procedural planning for LAA occlusion.
• CT facilitates improved device and catheter selection and fitting.
• The use of CT is associated with enhanced procedural accuracy.

Conclusions:

• Computed tomography is crucial for optimizing endovascular LAA occlusion.
• CT-based planning can mitigate procedural complications.
• CT enhances the safety and efficacy of LAA occlusion as an anticoagulation alternative.