3.2 Distribution of the NPAs and AWT
NPAs were found in 61 (21%) of 287 segments. Although the NPAs were mostly found around the PV antrum (21 [34.4%] of 61 NPAs), the AWT did not differ at each segment (anterior: 2.27±0.27 mm, bottom:2.25±0.21 mm, LAA base: 2.22±0.20 mm, lateral: 2.20±0.20 mm, posterior: 2.01±0.44 mm, PV antrum: 2.26±0.28 mm, roof: 2.38±0.35 mm, and septum: 2.13±0.23 mm, p = 0.094) (Figure2A ).