Table 2 Comparison of FVF values under NCP obtained without and with the reference of enhanced CT images

RPL (n = 101)

14.76 (11.21, 20.60)

15.15 (11.57, 20.49)

-2.35

0.019

RAL (n = 101)

14.98 (10.87, 19.73)

15.76 (10.91, 20.62)

-4.24

 < 0.001

LLL (n = 101)

13.61 (9.15, 17.92)

14.94 (10.99, 20.57)

-6.17

 < 0.001

Mean FVF value of three lobes

14.31 (10.35, 18.87)

15.33 (10.95, 20.00)

-6.98

 < 0.001