title: [The X-ray film of the petrosal bone in the special projection according to Chaussée III (author's transl)].
abstract: For the purpose of a better appreciation of the x-ray film of the petrosal bone in the special projection according to Chaussée III, the roentgenogram was divided into fifteen individual subsequent pictures and explained step by step. Together with the standard x-ray films, this particular roentgenogram provides a spatial idea of the tympanic cavity and enables accurate assessment of the destruction caused by chronic epitympanal otitis media as well as cholesteatoma. In many cases this eliminates the necessity of performing tomography of the middle ear.
mesh_terms: D006801:Humans; D008722:Methods; D010579:Petrous Bone / Q000000981:diagnostic imaging*; D011859:Radiography
vernacular_title: Das Röntgenbild des Schläfenbeines in der Spezialprojektion nach Chaussée III.