Fig. 3

Pearson correlation test between EV or VM density and quantitive parameters of CEUS. a A representative CEUS image along with the corresponding CD31-PAS double staining image. b EV density positively correlated to the maximal intensity (IMAX) (r = 0.4519, P = 0.0034). n = 40. c VM density positively correlated to the rise time (RT) (r = 0.3598, P = 0.0226). n = 40. d VM density positively correlated to the time to peak (TTP) (r = 0.3733, P = 0.0177). n = 40. e VM density positively correlated to the mean transit time (mTT) (r = 0.6483, P < 0.0001). n = 40