Research Article

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

Figure 4

Parameters of DUS and CEUS in the diagnosis and grading renal artery stenosis. (a) PSV parameters of the Doppler ultrasound in the diagnosis and grading renal artery stenosis. (b) parameters of contrast-enhanced ultrasound in the diagnosis and grading renal artery stenosis. (c) Stenosis rate parameters of contrast-enhanced ultrasound in the diagnosis and grading renal artery stenosis. PSV: peak systolic velocity at the stenosed segment of the renal artery by the Doppler ultrasound; : the minimum diameter at the stenosed segment of the renal artery by contrast-enhanced ultrasound.
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