[Value of imaging procedures in the diagnosis and therapy of severe thoracic injuries].

Plain chest radiographs allow the diagnosis of most intrathoracic injuries. However, they are only momentary pictures and give no information on the respiratory function. A tension pneumothorax, rib fractures and subcutaneous emphysema should be diagnosed clinically before radiographs are taken. Computed tomography is helpful in evaluation of intrapulmonary lesions, hemothorax, rupture of the diaphragm and dislocation of the heart. Further diagnostic tools include aortography in suspected aortic rupture, sonography in cardiac injuries and hemopericardium, bronchoscopy in suspected bronchial or tracheal rupture, ECG and enzyme determinations in cardiac contusion, and eventually pneumoperitoneum in suspected rupture of the diaphragm.