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NDT Advance Access originally published online on December 27, 2006
Nephrology Dialysis Transplantation 2007 22(3):692-696; doi:10.1093/ndt/gfl686
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© The Author [2006]. Published by Oxford University Press on behalf of ERA-EDTA. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Doppler sonography in renal artery stenosis—does the Resistive Index predict the success of intervention?

Bernd Krumme1 and Markus Hollenbeck2

1Deutsche Klinik für Diagnostik, Division of Nephrology and Hypertension, Wiesbaden and 2Knappschaftskrankenhaus Bottrop, Division of Nephrology and Rheumatology, Bottrop, Germany

Correspondence and offprint requests to: Prof. Dr Bernd Krumme, Division of Nephrology and Hypertension, Deutsche Klinik für Diagnostik, Von Leyden-Str. 23, D-65191 Wiesbaden, Germany. Email: Krumme@nephrologie-wiesbaden.de

Keywords: colour Doppler ultrasound; Doppler sonography; ischaemic nephropathy; renal artery stenosis; renal ultrasound; renovascular disease

The first 150 words of the full text of this article appear below.



   Introduction
 
Renal artery stenosis (RAS) may induce renovascular hypertension and ischaemic nephropathy. For decades, research has been focused on non-invasive diagnostic techniques, which might reliably predict the outcome of blood pressure and renal function after revascularization of RAS. In 1991, Geyskes and de Bruyn [1] found that captopril renography predicted the outcome of blood pressure in 94 patients with significant RAS with sensitivity and specificity of 91 and 62%, respectively. However, this technique shows less diagnostic accuracy in patients with renal failure [2]. Schoenberg et al. [3] have shown that magnetic resonance angiography is a reliable tool for the non-invasive grading of RAS, if phase-contrast flow measurement is achieved [3]. This technique offers important information on functional consequences of stenoses with potential impact on the glomerular filtration rate. Nevertheless, a correlation with the clinical outcome after intervention in patients with significant RAS . . . [Full Text of this Article]



   Intrarenal Resistive Index and its affecting factors
 
Extent of stenosis
Distensibility/stiffness of the arteries
Non-renal factors
The location of intrarenal Doppler measurement


   Is the intrarenal Resistive Index predictive for patients with RAS?
 


   Conclusions
 

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