FIGURE 1.

The effects of electric fields on viability of tumor cells. A, The effect of electric fields with different field strengths on viability of different kinds of Panc‐1 cells. The cell viability decreased gradually alone with the increasing electric field strengths. B, The effect of electric fields with different field strengths on viability of different kinds of Bxpc‐3 cells. The cell viability decreased gradually alone with the increasing electric field strengths. C, Experimental protocol for the evaluation of the effect of IRE in orthotopic pancreatic cancer model. D, Experimental protocol for the evaluation of the effect of IRE in subcutaneous pancreatic cancer model. E, The comparisons of tumor growth curves of orthotopic pancreatic tumor with or without IRE treatment. F, The comparisons of survival curves of orthotopic pancreatic tumor with or without IRE treatment. G, The comparisons of tumor growth curves of subcutaneous pancreatic tumor with or without IRE treatment. H, The comparisons of survival curves of subcutaneous pancreatic tumor with or without IRE treatment. One‐way analysis of variance (ANOVA) with Bonferroni comparison test was performed. **P < .01, ***P < .001, NS, not significant