- Poster presentation
- Open Access
Electrical impedance tomography at two thoracic levels provides detailed information about ventilation distribution in the cranial to caudal direction
© BioMed Central Ltd. 2010
- Published: 1 March 2010
- Tidal Volume
- Electrical Impedance Tomography
- Regional Lung
- Lung Ventilation
- Peep Level
Electrical impedance tomography (EIT) is a promising new tool for bedside monitoring of regional lung ventilation. Several studies have focused on the ventilation distribution and relationship with regional lung volume on a lower, caudal lung level. However, no information is available at a higher, cranial lung level.
EIT (EIT Evaluation Kit 2; Dräger, Lübeck, Germany) was measured at cranial and caudal lung levels in 10 patients after cardiothoracic surgery. Patients were fully sedated and mechanically ventilated and a PEEP trial was performed at four PEEP levels (15, 10, 5 and 0 cmH2O).
During decremental PEEP steps, the ventilation distribution not only shifts from a dorsal to ventral direction, but also from the caudal to cranial direction.