Recommendations for ultrasonographic assessment of renal arteries
, , , , und | 31. Jan. 2019
Über diesen Artikel
Article Category: review
Online veröffentlicht: 31. Jan. 2019
Seitenbereich: 338 - 343
Eingereicht: 25. Okt. 2018
Akzeptiert: 31. Dez. 2018
DOI: https://doi.org/10.15557/jou.2018.0049
Schlüsselwörter
© 2018 Anna Drelich-Zbroja et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Fig. 1.
Blood flow characteristics in normal renal artery. For transplanted renal artery, the renal iliac ratio (RIR) is used instead of RAR (normal RIR values are identical to RAR)
| Normal blood flow characteristics in renal artery trunks( |
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steep velocity curve in the contraction phase spectral window present absence of reversal blood flow direction slow return to the end-diastolic velocity flow velocity in the trunk usually the same or slightly slower than in the aorta |
Ultrasonographic morphological criteria and hemodynamic diagnosis of in-stent restenosis proposed by the authors of the RENAISSANCE study
| Restenosis criteria according to RENAISSANCE |
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renal/aortic ratio (RAR) ≥3.5 peak systolic velocity (PSV) ≥225 cm/s turbulent blood flow immediately after the stent |
Hemodynamic exponents of significant renal artery stenosis. For transplanted renal artery, the renal iliac ratio (RIR) is assessed instead of RAR. Furthermore, a comparison of RI values and the size of kidneys is not used in this group of patients
| The diagnosis of hemodynamically significant renal artery stenosis (≥60%)( |
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peak systolic velocity (PSV) ≥2.0 m/s end-diastolic velocity (EDV) ≥1.5 m/s RAR ≥3.5 acceleration time (AT) ≥0.08 s acceleration index (AI) <3 m/s2 RI difference >0.05 (stenosis occurs when there is lower RI value) difference in the size of the kidneys >15 mm |