Performance of different image reconstruction algorithms during mechanical ventilation with constant tidal volume and variable end-expiratory pressure and O₂ fraction.

The expected physiological findings regarding the magnitude and distribution of ventilation are used as reference states. -values of the Student's -test are reported. For each test, (the number of animals). E, Measures by EIT; V, tidal volume; Peep (P), positive end-expiratory pressure; ZEEP (Z), zero end-expiratory pressure; FIo2, fraction of O in inspired gas; 21, FIo2 equal to 21%; 100, FIo2 equal to 100%; indices 1 and 2 identify the first and the second measurements at identical ZEEP or Peep levels; CoV, center of ventilation; hypothesis confirmed at .