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01.05.2016 | Review

Imaging in acute respiratory distress syndrome

verfasst von: Antonio Pesenti, Guido Musch, Daniel Lichtenstein, Francesco Mojoli, Marcelo B. P. Amato, Gilda Cinnella, Luciano Gattinoni, Michael Quintel

Erschienen in: Intensive Care Medicine | Ausgabe 5/2016

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Abstract

Purpose

Imaging has become increasingly important across medical specialties for diagnostic, monitoring, and investigative purposes in acute respiratory distress syndrome (ARDS).

Methods

This review addresses the use of imaging techniques for the diagnosis and management of ARDS as well as gaining knowledge about its pathogenesis and pathophysiology. The techniques described in this article are computed tomography, positron emission tomography, and two easily accessible imaging techniques available at the bedside—ultrasound and electrical impedance tomography (EIT).

Results

The use of computed tomography has provided new insights into ARDS pathophysiology, demonstrating that ARDS does not homogeneously affect the lung parenchyma and that lung injury severity is widely distributed in the ARDS population. Positron emission tomography is a functional imaging technique whose value resides in adding incremental insights to morphological imaging. It can quantify regional perfusion, ventilation, aeration, lung vascular permeability, edema, and inflammation. Lung ultrasound and EIT are radiation-free, noninvasive tools available at the bedside. Lung ultrasound can provide useful information on ARDS diagnosis when x-rays or CT scan are not available. EIT is a useful tool to monitor lung ventilation and to assess the regional distribution of perfusion.

Conclusions

The future of imaging in critical care will probably develop in two main directions: easily accessible imaging techniques that can be used at the bedside and sophisticated imaging methods that will be used to aid in difficult diagnostic cases or to advance our understanding of the pathogenesis and pathophysiology of an array of critical illnesses.

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Titel: Imaging in acute respiratory distress syndrome
verfasst von: Antonio Pesenti
Guido Musch
Daniel Lichtenstein
Francesco Mojoli
Marcelo B. P. Amato
Gilda Cinnella
Luciano Gattinoni
Michael Quintel
Publikationsdatum: 01.05.2016
Verlag: Springer Berlin Heidelberg
Erschienen in: Intensive Care Medicine / Ausgabe 5/2016
Print ISSN: 0342-4642
Elektronische ISSN: 1432-1238
DOI: https://doi.org/10.1007/s00134-016-4328-1

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Imaging in acute respiratory distress syndrome