Skip to main content

Table 5 The cutoff values and diagnostic efficacies of RAR for detecting different degrees of RAS in aortic PSV < 140 cm/s group and aortic PSV ≥ 140 cm/s group

From: The performance of duplex ultrasonography for the assessment of renal artery stenosis in Takayasu’s arteritis patients

Aortic PSV

No

 

Cutoff value

AUC

Sensitivity (%)

Specificity (%)

PPV (%)

NPV (%)

Accuracy (%)

 < 140 cm/s

174

Involvement

1.4

0.840

74.51

86.99

70.37

89.17

83.33

 

 ≥ 50% RAS

1.4

0.888

88.24

82.86

55.56

96.67

83.91

 

 ≥ 70% RAS

2.2

0.885

84.00

89.93

58.33

97.10

89.08

 ≥ 140 cm/s

117

Involvement

0.9

0.839

68.97

89.83

86.96

74.65

79.49

 

 ≥ 50% RAS

1.0

0.848

77.14

84.15

67.51

89.61

82.05

 

 ≥ 70% RAS

1.1

0.838

80.95

80.21

47.22

95.06

80.34

  1. AUC area under the curve, NPV negative predictive value, PPV positive predictive value
Back to article page

Arthritis Research & Therapy

ISSN: 1478-6362

Contact us