Table 2 Comparison of DCE-MRI quantitative parameters before and after neoadjuvant chemotherapy

K_ep (/min)

Remission group

39

1.79±0.5

0.79±0.27

9.32

<0.01

Ineffective group

26

1.67±0.53

1.51±0.53

1.19

>0.05

 t

0.93

7.21

 P

>0.05

<0.01

K_trans (/min)

Remission group

39

1.39±0.51

0.67±0.29

Ineffective group

26

1.27±0.51

1.13±0.33

6.52

<0.01

 t

0.93

5.93

1.24

>0.05

 P

0.36

0.00

Remission group V_e

39

0.75±0.31

0.77±0.19

0.29

<0.01

Ineffective group V_e

26

0.83±0.33

0.85±0.13

0.29

>0.05

 t

0.99

1.87

 P

>0.05

>0.05