Nina C. Wunderlich et al. JIMG 2015;8:472-488 Complications (A) Highly compressed LAA occluder device (white arrows) is placed in 1 deep lobe. Another large lobe is completely uncovered (white asterisk). This situation is shown using 2D TEE (left) with and without color Doppler and an enface 3D TEE image without (middle) and with (right) color Doppler. (B) Unsuccessful LAA ligation using a LAA ligation device. A partially closed LAA is seen by using TEE X-plane imaging (left) and color Doppler demonstrating flow coming in and out (middle) and by using a 3D enface view from the left atrial side (right); the black arrows mark the residual leak at the level of the suture ligation. (C–E) Thrombus formation on different devices (marked with yellow arrows) by using TEE during follow-up (C = LAA occluder device in a 2D TEE plane and a 3D TEE enface view; D = LAA ligation device suture occlusion in a 3D TEE enface view; E = first generation LAA plug in a 3D TEE enface view). Abbreviations as in Figure 1. Nina C. Wunderlich et al. JIMG 2015;8:472-488 2015 American College of Cardiology Foundation