[Roentgen diagnosis of pulmonary embolism and infarct (author's transl)]

Systematic classification of roentgen signs according to anatomical and functional alterations is described as follows: Direct roentgen signs of embolism without hemorrhage and without infarction, indirect roentgen signs of embolism without hemorrhage and without infarction, indirect roentgen signs of embolism with hemorrhage, indirect roentgen signs of embolism with infarction, and roentgen signs of microembolism. Diagnostic security of conventional chest films, technique and "timing" of pulmonary angiography, direct and indirect roentgen signs of embolism in pulmonary angiography, and traumatic fat embolism are described.