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Figure 2 Posteroanterior (PA) view of cine images showing different electrode locations of the Solo lead when different interelectrode spacings were used. (A) Solo lead with 5-cm interelectrode spacing resulted in the electrodes positioned in low right atrium and midcoronary sinus. (B) Solo lead with 9-cm interelectrode spacing allowed optimal positioning of the electrodes to the mid-right atrium and distal coronary sinus.