title: Comparison of the helium rebreathing method and the x-ray film densitometry in epidemiological screening tests of CNSLD (author's transl).
abstract: Two methods for the examination of the residual volume were compared under the special conditions of epidemiological studies. The X-ray Photo Densitometry RV/TLC is measured as a quotient of the brightness of the lung radiographs during inspiration and expiration maximums. The Helium Rebreathing method is a gas mixture technique. The correlation between both methods proved to be significant (r = 0,60). The advantages and disadvantages of these methods for epidemiological studies were discussed.
mesh_terms: D015502:Absorptiometry, Photon; D006371:Helium; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000175:diagnosis*; D008403:Mass Screening; D011044:Poland; D012115:Residual Volume; D012119:Respiration; D012129:Respiratory Function Tests / Q000379:methods*
chemical_list: D006371:Helium
vernacular_title: Vergleich des schnellen Heliumrückatmungsverfahrens und der Röntgenfilmdensimetrie im Rahmen epidemiologischere Reihenuntersuchungen