Multimodality Imaging in Evaluating and Guiding Percutaneous Left Atrial Appendage Occlusion

Area of Science:

• Cardiology and Interventional Radiology
• Medical Imaging Technologies
• Structural Heart Interventions

Background:

• Left atrial appendage occlusion (LAAO) is crucial for stroke prevention in nonvalvular atrial fibrillation (AF) patients unsuitable for anticoagulation.
• Traditional imaging methods are being augmented by advanced technologies for improved procedural accuracy and patient outcomes.

Purpose of the Study:

• To review the evolving role of multimodality imaging in LAAO procedures.
• To highlight innovations in imaging for pre-, intra-, and postprocedural phases of LAAO.
• To discuss state-of-the-art imaging practices for optimizing LAAO outcomes and minimizing complications.

Main Methods:

• Review of recent literature on advanced imaging techniques in LAAO.
• Focus on three-dimensional (3D) echocardiography, multidetector cardiac computed tomography (MDCT), and 3D intracardiac echocardiography (ICE).
• Discussion of applications including 3D printing and virtual simulation for patient-specific planning.

Main Results:

• Advanced imaging significantly enhances preprocedural planning, device selection, and sizing.
• 3D ICE offers real-time intraprocedural guidance as an alternative to transesophageal echocardiography (TEE).
• Postprocedural imaging with TEE and MDCT is vital for assessing device stability and detecting complications.

Conclusions:

• Multimodality imaging, incorporating innovations like 3D ICE and simulation, is revolutionizing LAAO.
• These advanced techniques improve precision, procedural efficiency, and patient safety in LAAO.
• Optimized imaging strategies are essential for maximizing the benefits of LAAO for stroke prevention.