Key result
The LAA Occluder View for post-implantation Evaluation (LOVE) provides a standardized cardiac computed tomography imaging algorithm to systematically assess LAA occlusion device positioning, leaks, and neo-endothelialization.
The LOVE cCTA imaging algorithm provides a standardized, reproducible method for evaluating LAA occlusion devices post-implantation.
May standardize post-LAAO CT evaluation; leaves open prospective validation before clinical adoption.
BACKGROUND: A standardized imaging proposal evaluating implanted left atrial appendage (LAA) occlusion devices by cardiac computed tomography angiography (cCTA) has never been investigated. METHODS: cCTA datasets were acquired on a 3(rd) generation dual-source CT system and reconstructed with a slice thickness of 0.5 mm. An interdisciplinary evaluation was performed by two interventional cardiologists and one radiologist on a 3D multi-planar workstation. A standardized multi-planar reconstruction algorithm was developed in order to assess relevant clinical aspects of implanted LAA occlusion devices being outlined within a pictorial essay. RESULTS: The following clinical aspects of implanted LAA occlusion devices were evaluated within the most appropriate cCTA multi-planar reconstruction: (1) topography to neighboring structures, (2) peri-device leaks, (3) coverage of LAA lobes, (4) indirect signs of neo-endothelialization. These are illustrated within concise CT imaging examples emphasizing the potential value of the proposed cCTA imaging algorithm: Starting from anatomical cCTA planes and stepwise angulation planes perpendicular to the base of the LAA devices generates an optimal LAA Occluder View for post-implantation Evaluation (LOVE). Aligned true axial, sagittal and coronal LOVE planes offer a standardized and detailed evaluation of LAA occlusion devices after percutaneous implantation. CONCLUSIONS: This pictorial essay presents a standardized imaging proposal by cCTA using multi-planar reconstructions that enables systematical follow-up and comparison of patients after LAA occlusion device implantation.
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Behnes et al. (2016) studied Atrial fibrillation with implanted LAA occlusion device. LAA Occluder View for post-implantation Evaluation (LOVE) by cCTA was evaluated. The LAA Occluder View for post-implantation Evaluation (LOVE) provides a standardized cardiac computed tomography imaging algorithm to systematically assess LAA occlusion device positioning, leaks, and neo-endothelialization.
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