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Curr Opin Crit Care. 2009 Feb;15(1):18-24.

Electrical impedance tomography.

Author information

1
Respiratory Intensive Care Unit, University of São Paulo School of Medicine, São Paulo, Brazil.

Abstract

PURPOSE OF REVIEW:

Electrical impedance tomography (EIT) is a noninvasive, radiation-free monitoring tool that allows real-time imaging of ventilation. The purpose of this article is to discuss the fundamentals of EIT and to review the use of EIT in critical care patients.

RECENT FINDINGS:

In addition to its established role in describing the distribution of alveolar ventilation, EIT has been shown to be a useful tool to detect lung collapse and monitor lung recruitment, both regionally and on a global basis. EIT has also been used to diagnose with high sensitivity incident pneumothoraces during mechanical ventilation. Additionally, with injection of hypertonic saline as a contrast agent, it is possible to estimate ventilation/perfusion distributions.

SUMMARY:

EIT is cheap, noninvasive and allows continuous monitoring of ventilation. It is gaining acceptance as a valuable monitoring tool for the care of critical patients.

PMID:
19186406
[Indexed for MEDLINE]

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