Table 4 Renal duplex sonography

Renal aortic ratio

4.6 ± 2.0

5.0 ± 2.3

1.7 ± 0.9 (< 0.001)^b

4.5 ± 2.6 (0.462)^b

1.5 ± 0.6 (< 0.001)^b

3.0 ± 1.5 (0.004)^b

P value

Maximal systolic flow, cm/s

317 ± 94

360 ± 102

147 ± 51 (< 0.001)^b

355 ± 133 (0.178)^b

138 ± 44 (< 0.001)^b

301 ± 117 (0.125) ^b

P value

Renal resistive index

0.69 ± 0.09

0.65 ± 0.12

0.73 ± 0.10 (0.005)^b

0.63 ± 0.12 (0.594)^b

0.73 ± 0.08 (< 0.001)^b

0.63 ± 0.13 (0.438)^b

P value

Kidney length, pole to pole, mm

99 ± 11

104 ± 14

105 ± 14 (0.044)^b

98 ± 11 (0.066)^b

105 ± 14 (0.071)^b

99 ± 13 (0.090)^b

P value

Acceleration time, s

0.12 ± 0.06

0.11 ± 0.07

0.07 ± 0.05 (0.003)^b

0.10 ± 0.07 (0.502)^b

0.10 ± 0.06 (0.249)^b

0.16 ± 0.06 (0.500)^b

P value

 > 70%

47 (97.9)

38 (97.4)

0 (0.0)

31 (91.2)

1 (3.1)

15 (79.0)

 < 70%

1 (2.1)

1 (2.6)

37 (100.0)

3 (8.8)

31 (96.9)

4 (21.1)

P value