Lung-protective ventilation is a strategy used in mechanical ventilation that aims to minimize lung injury (such as barotrauma, volutrauma, and biotrauma) that may be caused by mechanical ventilation by limiting tidal volume, controlling plateau pressure, and appropriate positive end-expiratory pressure, thereby improving the prognosis of patients with severe respiratory disorders, especially ARDS or other severe respiratory dysfunction. This strategy has been shown to reduce mortality and complications in patients.

Electrical Impedance Tomography (EIT) is a non-invasive medical imaging technique. It measures changes in the impedance of different tissues to current by placing electrodes on the surface of the body and uses this data to generate two-dimensional images. Because lung ventilation activity can cause significant changes in impedance, this technique is particularly suitable for monitoring respiratory function.