The Value of Contrast-Enhanced Ultrasound versus Doppler Ultrasound in Grading Renal Artery Stenosis

Table 4

Diagnostic value of CEUS and DUS in the diagnosis of renal artery stenosis.

	Sensitivity	Specificity	Accuracy	PPV	NPV
DUS	74.1%	78.0%	75.4%	87.0%	60.4%
CEUS	88.9%	87.8%	88.5%	93.5%	80.0%

PPV: positive predictive value; NPV: negative predictive value.