3.2 Distribution position of the pacing electrodes in the nine partition method
As shown in Figure 3, at RAO 30°, the red dots represent the two-dimensional distribution of the tips of the LBBAP electrodes in 50 patients. Among these, 28 pacing electrodes were in the PM position, 14 in the M position, 5 in the PI position, and 3 in the MI position. All pacing electrodes were located in the PM, M, PI and MI positions or in the junction area. Overall, 84% of the electrodes were located in the PM and M positions, and the pacing electrodes were densely distributed in the PM position.