Assessment of diagnostic value of a new Doppler index for renal artery stenosis and comparison with conventional methods

作者：Li, Yan; Song, Junxue; Sun, Mingli; Zhu, Yingqiao; Sun, Xiaofeng^*

来源：International Journal of Clinical and Experimental Medicine, 2017, 10(6): 9513-9517.

• Renal artery stenosis (RAS)
• color Doppler ultrasonography (CDUS)
• new Doppler index

This study aimed to assess a new Doppler parameter for diagnosis of renal artery stenosis (RAS), the bilateral renal ratio (BRR). Fifty-nine patients with suspicion of RAS were evaluated. The BRR, defined as the ratio of renal artery peak systolic velocities between the affected side and healthy side, was measured, and its sensitivity and specificity were compared to those of four conventional parameters. The best cutoff value for the new BRR was 2.05 with a sensitivity of 98.1% and specificity of 99%. The new BRR exhibited significant improvement compared to conventional parameters and thus, is a useful index for more accurate diagnosis of RAS.

• 出版日期2017
• 单位吉林大学