Table 5 Sensitivity and specificity of the direct parameters
From: Diagnostic role of new Doppler index in assessment of renal artery stenosis
Parameter | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) |
|---|---|---|---|---|
RPSV > 200 cm/s | 97 | 72 | 81 | 95 |
RAR > 3 | 77 | 90 | 90 | 76 |
RRR > 2.7 | 97 | 96 | 97 | 97 |