Multimodality imaging in evaluating and guiding percutaneous left atrial appendage occlusion
Recommended Citation
Jain R, Wessly P, Saric M, et al. Multimodality Imaging in Evaluating and Guiding Percutaneous Left Atrial Appendage Occlusion. J Am Soc Echocardiogr. Published online July 25, 2025. doi:10.1016/j.echo.2025.07.009
Abstract
Left atrial appendage occlusion (LAAO) has emerged as an important intervention for stroke prevention in patients with non-valvular atrial fibrillation (AF) who are unable to tolerate long-term anticoagulation. The development of advanced imaging technologies and techniques, such as 3D echocardiography with multiplanar reconstruction (MPR), multidetector computed tomography (MDCT), 3D intracardiac echocardiography (ICE), 3D printing, and simulation, has revolutionized pre-procedural planning, intra-procedural guidance, and post-procedural surveillance, ensuring improved precision and outcomes. Transesophageal echocardiography (TEE) remains a foundational imaging modality for assessing LAA morphology, excluding thrombi, and obtaining accurate measurements for device sizing. Recent advances in 3D TEE and MPR techniques enable enhanced visualization of complex LAA anatomies, improving device selection and procedural planning. Multidetector computed tomography has a growing role, offering high-resolution 3D reconstructions for detailed anatomical assessment. Additionally, its applications in 3D printing and virtual device simulation provide patient-specific insights, facilitating optimal device sizing and improving procedural efficiency. Intra-procedurally, 3D ICE has gained traction as a valuable alternative to TEE. With its real-time imaging capabilities and high spatial resolution, 3D ICE allows precise guidance during transseptal puncture and device deployment while reducing the need for general anesthesia. Post-procedurally, both TEE and MDCT play critical roles in assessing device stability and identifying complications such as device-related thrombus and peri-device leak. This review highlights the evolving role of multimodality imaging in LAAO, including innovations such as 3D ICE, 3D printing, and simulation. It also reviews recent literature to establish state-of-the-art imaging practices, providing a comprehensive discussion of imaging applications across pre-, intra-, and post-procedural phases to optimize outcomes and minimize complications in LAAO.
Type
Article
PubMed ID
40716581
Affiliations
Aurora Sinai/Aurora St. Luke's Medical Centers