Lung Ultrasound and Electrical Impedance Tomography for Monitoring Lung Injury

Area of Science:

• Critical Care Medicine
• Respiratory Physiology
• Medical Imaging

Background:

• Individualized mechanical ventilation necessitates real-time monitoring of lung morphology and function.
• Current monitoring methods may interrupt patient treatment.
• Lung ultrasound (LUS) and electrical impedance tomography (EIT) offer non-interruptive monitoring solutions.

Purpose of the Study:

• To review the principles, protocols, and applications of LUS and EIT in mechanical ventilation.
• To highlight the complementary roles of LUS and EIT in assessing lung status.
• To discuss clinical applications for optimizing ventilation strategies.

Main Methods:

• LUS provides morphological assessment via artifacts and direct signs.
• EIT generates dynamic functional maps of ventilation distribution.
• Both techniques are non-invasive and allow continuous monitoring.

Main Results:

• LUS and EIT offer complementary insights into lung condition.
• EIT visualizes responses to changes in PEEP, tidal volume, and patient positioning.
• Clinically useful indices derived from these techniques aid in patient management.

Conclusions:

• LUS and EIT are valuable tools for real-time, individualized mechanical ventilation.
• These technologies support applications in ARDS, ventilator-induced lung injury, PEEP optimization, and weaning.
• Integrating LUS and EIT enhances the precision of respiratory support.