CEACAM5 and neoplasm: In terms of correlation coefficients, there was no significant correlation between the tumor size and Ktrans (r = −0.081, 95% CI, −0.351–0.202, p = 0.585) or between the CEA level and Ktrans (r = −0.143, 95% CI, −0.408−0.144, p = 0.327).