Thoracic images are presented through chest radiographs, electrical impedance tomography (EIT), and computed axial tomography in patients with pleuropulmonary disease (Fig. 1). A shows a loculated hydropneumothorax; EIT demonstrates reduced pulmonary volume distribution in quadrants 2 and 4, corresponding to the left lung. B shows a pulmonary contusion with left basal pleural effusion; EIT demonstrates absence of ventilation in quadrant 4, representing the left basal pulmonary region. C shows a bilateral pleural effusion; EIT is displayed in layers, denoting absence of ventilation in layer 4. D shows a left apical pneumothorax; EIT demonstrates absence of pulmonary volume distribution in quadrant 2.

Figure 1