Bedside Lung-Ventilation Monitoring in the ICU
Electrical Impedance Tomography (EIT) shows regional gas distribution and respiratory rate in the lungs in real time — non-invasive, able to run continuously at the bedside, and supporting mechanical-ventilation strategy.
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Background
Lung-ventilation assessment for ICU patients has traditionally relied on radiological methods such as chest X-ray and CT, which cannot monitor continuously at the bedside. Mechanical-ventilation adjustments (PEEP, tidal volume) lack real-time feedback, carrying a risk of over-ventilation and lung injury.
Measurement challenges
- Bedside monitoring must be non-invasive, radiation-free and able to run continuously for long periods
- Chest shape varies greatly between patients, demanding flexible calibration
- Clinical workflow is tight, so operation must be simple and repeatable
Our solution
A medical monitor developed on the EIT principle: a disposable multi-electrode chest belt, image reconstruction in tens of milliseconds, and real-time display of regional ventilation distribution in the lungs; it synchronises with ventilator data and supports long-term trend recording.
Results
- Bedside clinicians can see ventilation uniformity across both lungs and the collapse / recruitment process in real time
- Guides individualised mechanical-ventilation strategy
- Reduces the risk of ventilator-associated lung injury