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. 2023 Mar 16;16(4):e011408. doi: 10.1161/CIRCEP.122.011408

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© 2023 The Authors.

Circulation: Arrhythmia and Electrophysiology is published on behalf of the American Heart Association, Inc., by Wolters Kluwer Health, Inc. This is an open access article under the terms of the Creative Commons Attribution Non-Commercial-NoDerivs License, which permits use, distribution, and reproduction in any medium, provided that the original work is properly cited, the use is noncommercial, and no modifications or adaptations are made.

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Figure 3. — Implantation of the left bundle branch lead under intracardiac echocardiography (ICE) guidance. A, Pacing lead (PL) implanted in the left ventricular (LV) endocardium through the interventricular septum (IVS) under ICE guidance. B and C, Three-dimensional model of LV and aorta (AO) reconstructed using ICE. The green part denotes the aorta, L denotes the left coronary aortic cusp (LCC), N denotes the noncoronary aortic cusp (NCC), and R denotes the right coronary aortic cusp (RCC). The pink part indicates the IVS, and the gray part indicates the LV. LAO indicates left anterior oblique view; LAT, local activation time; and RAO, right anterior oblique view.