Figure 3

Calculated ulcer areas and the healing rate. (a) The initial ulcer area with no statistically difference between two groups. (b) The remaining ulcer area 14 days after ESD was much larger in the control group than in the experimental group. (c) The absolute change of ulcer area in the control group and experimental group were 5.95 ± 3.90 cm2 versus 8.07 ± 4.97 cm2 (P = 0.0352). (d) The calculated healing rates. The healing rates were significantly higher in the experimental group than in the control group (83.89 ± 9.51% vs. 73.28 ± 17.81%, respectively, P = 0.0013). Data are presented as the mean ± SD. ESD, endoscopic submucosal dissection.