Variability in the size of airspaces in normal human lungs as estimated by aerosols.
Lapp-NL; Hankinson-JL; Amandus-H; Palmes-ED
Thorax 1975 Jun; 30(3):293-299
Measurement of persistence, expressed as halflife, of a monodisperse aerosol during breath holding was interpreted as an indirect estimate of the size of intrapulmonary airspaces in healthy subjects. Within subject variation of halflife measured over a period of nearly two years was small. Calculated mean airspace diameters ranged from 0.30 to 0.79 millimeters for 36 males and from correlated poorly with age, height, weight, and lung volumes. Results suggest marked differences in airways geometry in subjects with similar heights and lung volumes.
NIOSH-Publication; NIOSH-Author; NIOSH-Grant; Pulmonary-system-disorders; Pulmonary-function-tests
Environmental Medicine New York University Med Ctr 550 First Avenue New York, N Y 10016
New York University, New York, New York