Inclusion Criteria
- The population included in the clinical study will be selected from a pool of patients undergoing respiratory support who are scheduled to have their ventilation settings changed.
As a subgroup, patients who are scheduled for surgeries that need one-lung-ventilation (OLV) will be enrolled to the study.
- Male and female patients at the age of 18 years or older
- On respiratory support in ICU care or scheduled for such ( e.g. postoperatively) or scheduled for surgery with OLV
- Patients of which the monitoring of ventilation distribution may be of clinical interest
- Patients being ventilated via an artificial airway with a mechanical ventilator that is compatible with PulmoVista 500
- Patients scheduled for changes in ventilation settings that may cause relevant changes in the ventilation
- Chest circumference between 70 and 150 cm
- Written informed consent to participate in the study provided by either the patient or the legal representative of the patient.
Exclusion Criteria
- Currently has a permanent or temporary pacemaker, implantable cardiac device (ICD) or other device emitting electrical energy
- a BMI ≥ 50
- tidal volume (VT) ≤ 200 mL
- Current uncontrolled body movements such as tics, tremors or seizures,
- Current wound dressings or infections on the chest that might interfere with the PulmoVista 500 electrode belt placement
- Women of child bearing potential whose pregnancy cannot be excluded based on a pregnancy test or other proven facts.
- Allergic to materials used in the electrode belt
- Participation of the patient in an interventional trial within the last four weeks before enrollment in this trial
- Evidence suggesting that the patient or his legal representative is not likely to follow the trial protocol (e.g. lacking compliance)
- Known infectious diseases that require isolation of patient (e.g. MRSA)
- Concomitant use of an air anti-decubitus medical mattress with dynamic inflation that cannot be deactivated during EIT measurements