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Table 1 Descriptive statistics of stenosis measurements (Mean ± SD). Most prominent stenosis defined in three different ways: most pronounced stenosis in proximal vessel segment (First), segment with most pronounced stenosis (Tightest) and most pronounced stenosis in main renal artery (Main)

From: How to measure renal artery stenosis - a retrospective comparison of morphological measurement approaches in relation to hemodynamic significance

Modality

Measure

All arteries

Most prominent stenosis for each kidney

Segment 1

Segment 2

First

Tightest

Main

CTA

MinD (mm)

2.65 ± 1.46

2.82 ± 1.01

2.93 ± 1.55

2.68 ± 1.44

2.79 ± 1.35

 

MinA (mm2)

10.56 ± 8.41

9.49 ± 6.08

12.61 ± 9.05

10.86 ± 7.84

11.24 ± 7.55

 

Dred (%)

46.7 ± 25.5

24.7 ± 14.7

44.8 ± 26.2

48.4 ± 24.9

46.3 ± 23.2

 

Ared (%)

58.4 ± 25.5

36.3 ± 17.6

55.5 ± 26.0

59.3 ± 24.0

57.7 ± 22.9

 

n

96

72

68

68

68

MRA

MinD (mm)

2.88 ± 1.76

2.78 ± 1.37

3.06 ± 1.74

2.62 ± 1.64

2.64 ± 1.62

 

MinA (mm2)

11.63 ± 9.49

9.66 ± 7.01

12.90 ± 9.61

10.54 ± 8.53

10.58 ± 8.49

 

Dred (%)

45.4 ± 30.8

33.1 ± 25.5

43.6 ± 29.3

50.2 ± 28.2

49.2 ± 27.6

 

Ared (%)

55.8 ± 29.4

44.1 ± 25.9

53.3 ± 28.1

60.0 ± 26.0

59.3 ± 25.5

 

n

83

46

68

68

68