title: [Niobium powder--a new x-ray contrast medium for tracheobronchography].
abstract: In inhalation tracheobronchography with niobium powder in rabbits and a volunteer (physician), excellent contour bronchograms with detailed imaging of the structure of the mucosa were obtained. With methodically proper application the niobium particles of 20-40 microns do not penetrate into the alveoli and are quickly (within 1-5 days) eliminated from the bronchi. Investigations with mice have shown, that niobium powder is insoluble, does not irritate tissues and is not resorbed. It is also nontoxic.
authors.affiliation: Röntgenoradiologische Abteilung, Leningrad Forschungsinstitut für Phtisiopulmonologie.
authors.forename: A A
authors.initials: AA
authors.lastname: Kristafovic
authors.forename: L E
authors.initials: LE
authors.lastname: Kolesko
authors.forename: A E
authors.initials: AE
authors.lastname: Alexandrova
authors.forename: T P
authors.initials: TP
authors.lastname: Ermolova
authors.forename: N N
authors.initials: NN
authors.lastname: Zubechin
mesh_terms: D000280:Administration, Inhalation; D000818:Animals; D001995:Bronchography; D003287:Contrast Media / Q000008:administration & dosage*; D006801:Humans; D009556:Niobium / Q000008:administration & dosage; D011208:Powders; D011817:Rabbits; D014132:Trachea / Q000000981:diagnostic imaging*
chemical_list: D003287:Contrast Media; D011208:Powders; D009556:Niobium
vernacular_title: Niobpulver als neues Röntgenkontrastmittel für die Tracheobronchographie.