electric impedance tomography can help with avoiding VILI

• related: ICU intensive care unit
• tags: #permanent

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• electric impedance tomography (EIT) works by placing sensors around mid chest
• small electrical signals are applied and then received
• air and tissue in the lung returns different impedance
• signals returned then produce cross sectional image of gas volume in the lung
• this can be helpful in preventing VILI: ventilator induced lung injury VILI happens from over distention of normal lung?

• the four quadrants of the lungs are plotted in the picture with tidal volume for each
• regions of interest (ROI) arranged ventral to dorsal. ¹²

Links to this note

• ICU intensive care unit
  • electric impedance tomography can help with avoiding VILI

Footnotes

1. Bachmann MC, Morais C, Bugedo G, et al. Electrical impedance tomography in acute respiratory distress syndrome. Crit Care. 2018;22(1):263. PubMed ↩

2. van der Zee P, Somhorst P, Endeman H, et al. Electrical impedance tomography for positive end-expiratory pressure titration in COVID-19-related acute respiratory distress syndrome. Am J Respir Crit Care Med. 2020;202(2):280-284. PubMed ↩