Evaluation of renal artery stenosis with hemodynamic parameters of Doppler sonography Jian-chu Li, MD, Yu-xin Jiang, Shu-yang Zhang, MD, Lei Wang, MD,

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Evaluation of renal artery stenosis with hemodynamic parameters of Doppler sonography Jian-chu Li, MD, Yu-xin Jiang, Shu-yang Zhang, MD, Lei Wang, MD, Yun-shu Ouyang, MD, Zhen-hong Qi, MD Journal of Vascular Surgery Volume 48, Issue 2, Pages 323-328 (August 2008) DOI: 10.1016/j.jvs.2008.03.048 Copyright © 2008 The Society for Vascular Surgery Terms and Conditions

Fig A 66-year-old male patient with severe stenosis of the proximal segment of the right main renal artery. A, The renal peak systolic velocity (PSV) at the stenotic site = 246 cm/s (positive); the renal-aortic ratio = 2.1 (false negative). B, The PSV in the distal segment of the right main renal artery = 121 cm/s; the renal-renal ratio = 2 (positive). C, Spectral analysis of the interlobar artery shows that its PSV = 44 cm/s and the renal-interlobar ratio = 5.6 (positive). No obvious tardus-parvus waveform is observed. D, Arteriography shows a severe stenosis (arrow) in the proximal segment of the right renal artery afterwards. Journal of Vascular Surgery 2008 48, 323-328DOI: (10.1016/j.jvs.2008.03.048) Copyright © 2008 The Society for Vascular Surgery Terms and Conditions