title: [Morphometric research in determining the absorbed dose in the lungs formed from aspirated radionuclides].
abstract: Macro- and microtopography of the distribution of aspirated colloidal 144CeF3 in autographs of rabbit lung total sections were examined with the help of a monitoring-measuring device "Videoplan" and microcomputer. Quantitative assessment of photoemulsion-blackening areas at the site of radionuclide concentration has confirmed that aspirated radionuclides are distributed in the lungs according to the same laws as nonradioactive aerosols: the relation of total microvolumes of actually irradiated pulmonary tissue to the entire lung volume long after radionuclide entry is shown; a possibility to use these data for determination of an actually absorbed dose in microvolumes of pulmonary tissue during aspiration of radionuclides is considered.
authors.forename: A E
authors.initials: AE
authors.lastname: Ivanov
authors.forename: E I
authors.initials: EI
authors.lastname: Uvarova
mesh_terms: D000042:Absorption; D000280:Administration, Inhalation; D000818:Animals; D001345:Autoradiography; D002563:Cerium / Q000008:administration & dosage / Q000378:metabolism*; D002565:Cerium Radioisotopes / Q000008:administration & dosage / Q000493:pharmacokinetics*; D005459:Fluorides; D008168:Lung / Q000378:metabolism / Q000473:pathology / Q000528:radiation effects*; D008838:Microcomputers; D008853:Microscopy / Q000295:instrumentation; D011817:Rabbits; D011829:Radiation Dosage; D013997:Time Factors; D014132:Trachea
chemical_list: D002565:Cerium Radioisotopes; C058441:cerium fluoride; D002563:Cerium; D005459:Fluorides
vernacular_title: Morfometricheskie issledovaniia pri opredelenii pogloshchennoĭ dozy v legkikh, obrazuemoĭ aspirirovannymi radionuklidami.