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Fig. 4 | BMC Medical Imaging

Fig. 4

From: - LAA Occluder View for post-implantation Evaluation (LOVE) - standardized imaging proposal evaluating implanted left atrial appendage occlusion devices by cardiac computed tomography

Fig. 4

The figure summarizes schematically the four main follow-up scenarios on cardiac CTA after LAA occlusion device implantation. Panel a demonstrates optimal positioning of the LAA occlusion device without any residual lobe, any peri-device leak and without any residual contrast filling (blue dots in LAA) indicating complete neo-endothelialization. Panel b demonstrates a peri-device leak with contrast filling of the LAA. Panel c shows sub-optimal positioning of the LAA occlusion device with in-complete lobe coverage leaving a residual left atrial appendage. Panel d shows optimal positioning of the LAA occlusion device with in-complete neo-endothelialization that is suggested indirectly by the contrast enhancement of the LAA (blue dots in LAA). Please note that all three scenarios can occur in combination. In case of an existing peri-device leak with contrast filling of the LAA assessment of endothelialization is not feasible with cardiac CT

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