Figure 1From: Electrical impedance tomography measured at two thoracic levels can visualize the ventilation distribution changes at the bedside during a decremental positive end-expiratory lung pressure trialChest X-ray of one of the studied patients showing the cranial (upper) and caudal (lower) electrical impedance tomography belt. X-ray taken at 5 cm H2O positive end-expiratory pressure (PEEP).Back to article page