This welcome addition to the series Update in Intensive Care and Emergency Medicine emerges from the most recent of a series of meetings organized by Alvar Net and Salvador Benito of Barcelona. This gathering provided a forum for European intensive care specialists to exchange ideas, knowledge and experience on, the measurements feasible in mechanically ventilated patients. The scope was ambitious, ranging from basics like the measurement of airway pressure and blood gases to topics such as CT, MRI and the multiple inert gas elimination technique. The success of the meeting made publication a...