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Related Concept Videos

Mechanical Ventilation II: Invasive Ventilation01:23

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Ventilators are essential medical equipment used to aid patients with respiratory difficulties. Their primary function is to assist or replace spontaneous breathing by providing mechanical ventilation. There are two general classes of mechanical ventilators: negative-pressure and positive-pressure ventilators.
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Mechanical ventilation is a life-saving technique for managing acute respiratory failure and other respiratory complications. The process involves using a machine known as a ventilator to supply oxygen to the lungs and assist in removing carbon dioxide. It serves as a bridge to long-term mechanical ventilation or a temporary measure until ventilatory support is discontinued. The ventilator can maintain this function for a prolonged period, providing critical support for patients until they can...
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Related Experiment Video

Updated: Mar 14, 2026

Monitoring Lung Function with Electrical Impedance Tomography in the Intensive Care Unit
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Electrical Impedance Tomography During Mechanical Ventilation.

Brian K Walsh1, Craig D Smallwood2

  • 1Division of Critical Care Medicine, Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children's Hospital, Boston, Massachusetts and Harvard Medical School, Boston, Massachusetts. Brian.walsh@childrens.harvard.edu.

Respiratory Care
|September 30, 2016
PubMed
Summary
This summary is machine-generated.

Electrical impedance tomography (EIT) offers a noninvasive imaging method for lung disorder assessment and mechanical ventilation management. While promising for bedside decision support, further human trials are needed for widespread ICU adoption.

Keywords:
electrical impedance tomographylung imagingmechanical ventilationregional distribution of ventilation

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Area of Science:

  • Medical Imaging
  • Critical Care Medicine
  • Pulmonary Medicine

Background:

  • Electrical impedance tomography (EIT) is a noninvasive imaging technique that monitors lung function by detecting changes in electrical conductivity related to lung volume.
  • EIT offers advantages over traditional methods, including portability, lack of radiation, and suitability for continuous, long-term patient monitoring.

Purpose of the Study:

  • To provide an overview of the clinical applications of EIT in monitoring mechanical ventilation and supporting bedside decisions.
  • To highlight EIT's potential in managing lung disorders and optimizing ventilator settings.

Main Methods:

  • The article focuses on the clinical utility of EIT rather than its technical image reconstruction methods.
  • It reviews existing research on EIT's application in critical care settings.

Main Results:

  • EIT has demonstrated utility in detecting pneumothoraces and quantifying pulmonary edema.
  • It can compare ventilation distribution across different mechanical ventilation modes and may enable superior individual titration of positive end-expiratory pressure (PEEP).

Conclusions:

  • EIT shows potential as a valuable bedside tool for mechanical ventilation management and lung disorder assessment.
  • Further comparative studies in human intensive care units are necessary before EIT can be widely recommended for clinical practice.