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Published in: Journal of Nephrology 4/2019

01-08-2019 | Review

Renal intraparenchymal resistive index: the ultrasonographic answer to many clinical questions

Authors: Pierpaolo Di Nicolò, Antonio Granata

Published in: Journal of Nephrology | Issue 4/2019

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Abstract

The use of renal resistive indices (RRIs) for the study of renal microcirculation has in the past been proposed for the identification of renal organ damage or even to specifically identify injury to some areas of the renal parenchyma. Nevertheless, according to the most recent evidences from literature this organ-based conception of RRIs has been proven to be partial and unable to explain the RRIs variations in clinical settings of sepsis or combined organ failure of primitively extrarenal origin or, more generally, the deep connection between RRIs and hemodynamic factors such as compliance and pulsatility of the large vessels. The aim of this review is to explain the physiopathological basis of RRIs determination and the most common interpretative errors in their analysis. Moreover, through a comprehensive vision of these Doppler indices, the traditional and emerging clinical application fields for RRIs are discussed.
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Metadata
Title
Renal intraparenchymal resistive index: the ultrasonographic answer to many clinical questions
Authors
Pierpaolo Di Nicolò
Antonio Granata
Publication date
01-08-2019
Publisher
Springer International Publishing
Published in
Journal of Nephrology / Issue 4/2019
Print ISSN: 1121-8428
Electronic ISSN: 1724-6059
DOI
https://doi.org/10.1007/s40620-018-00567-x

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