3.2 Anatomical characteristics of CPL and MPL
The average distance from MPL to the esophagus was farther than from CPL
to the esophagus (4.0 ± 1.7mm vs 3.2 ± 1.0mm, P < 0.001, Table
1). The fat pad under MPL appeared with higher frequency than that under
CPL (74.5% vs 18.6%, P < 0.001) and the average thickness of
the fat pad under MPL was thicker than that under CPL (1.4 ± 0.6mm vs
0.9 ± 0.2mm, P < 0.001). The average thickness of LAPW
myocardium under MPL was also thicker than that under CPL (2.9 ± 1.1mm
vs 1.6 ± 0.3mm, P < 0.001).