Table 4 The results of CEUS in DN and NDRD patients

LK PEAK

Mean ± sd.

26.45 ± 8.81

31.42 ± 7.27

0.003

LK Tp

Median (IRQ)

11.59 (8.95,15.15)

12.31 (9.56, 18.09)

0.309

LK ROC curve rising branch slope

Median (IRQ)

2.15 (1.44,3.13)

2.53 (1.53, 3.47)

0.378

LK AUC

Median (IRQ)

1097.35 (845.13,2055)

1851.37 (1375.67, 2619.03)

0.007

LK MTT

Mean ± sd.

41.05 ± 17.92

47.64 ± 17.95

0.022

LK Per unit area under the curve

Median (IRQ)

53.07 (34.01,88.16)

85.73 (51.01, 116.92)

0.016

RK PEAK

Mean ± sd.

27.45 ± 7.94

30.27 ± 7.98

0.076

RK Tp

Median (IRQ)

13.3 (9.81,17.2)

11.93 (9.32,17.5)

0.789

RK ROC curve rising branch slope

Median (IRQ)

2.13 (1.54,2.52)

2.31 (1.89, 3.11)

0.095

RK AUC

Median (IRQ)

1457.65 (904.72,2078.49)

1779.97 (1330.53, 2395.43)

0.058

RK MTT

Median (IRQ)

41.7 (27.51,53.62)

44.18 (35.46, 56.74)

0.200

RK Per unit area under the curve

Median (IRQ)

57.64 (35.75,101.46)

70.63 (47.94, 123.01)

0.091