Figure 2. Thoracic computed tomographic images in patient 8. The three figures above represents the three level of cuts obtained at end expiration without PEEP (ZEEP); the three figures below are the middle level cut, at end expiration with PEEP, and at end inspiration with a reduced tidal volume (rVt) or a 10-ml/kg tidal volume (Vt 10 ml), respectively. Note that recruitment is spectacular with PEEP and almost maximal with rVt.