VIT - ventilator integrated tomography

In Electrical Impedance Tomography (EIT), weak alternating currents are applied to the body where they take the path of least resistance, generating an electrical voltage at the body surface. Thirty-two high-resolution electrodes in a textile belt measure these biological signals. An integrated position sensor identifies the patient's position. The arrangement of the electrodes allows them to successively receive the signals from all directions. This also changes the electrical angle from which the local tissue resistances are viewed and then converted into moving images. With this approach, continuous imaging of the lung function has become possible. By linking this technique with the measuring and control technology of a state-of-the-art intensive care ventilator (ventilator integrated tomography), a wide range of clinical problems can be assessed and the appropriate therapeutic decisions made.

The combination of measured values from the intensive care ventilator with the results of electrical impedance tomography:

  • reduces intra-hospital transports of critically ill ventilated patients
  • objectivizes ventilation settings and allows for adjusting them under visual control
  • helps identify and reduce ventilation-related complications
  • allows for managing prone positioning therapy with pulmonary monitoring to optimize ventilation
  • identifies and prevents pulmonary collapse associated with the respiratory cycle
  • provides data to analyze regional compliance
  • helps detect overdistension, which can be counteracted by changing the ventilation settings
  • offers real-time adjustment options for optimal PEEP

Application area of the VIT:

  • Intensive care units