Results 221 to 230 of about 222,812 (264)
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Use of an acoustic helium analyzer for measuring lung volumes
Journal of Applied Physiology, 1981We have evaluated the use of an acoustic gas analyzer (AGA) for the measurement of total lung capacity (TLC) by single-breath helium dilution. The AGA has a rapid response time (0-90% response = 160 ms for 10% He), is linear for helium concentration of 0.1-10%, is stable over a wide range of ambient temperatures, and is small and portable.
P E, Krumpe +5 more
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Fetal Lung Volume Measurements using 3D Ultrasonography
Ultraschall in der Medizin - European Journal of Ultrasound, 2011The aim of the study was to establish fetal lung, thoracic and heart volume nomograms using three-dimensional (3D) ultrasonographic measurements.For this purpose a total of 300 fetuses were examined between 18 and 34 weeks of gestation using Voluson 530 ME and Voluson 730 PRO (General Electic, USA) ultrasound devices with 5 MHz three-dimensional ...
D, Miric Tesanic, E, Merz, S, Wellek
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Accuracy of measured and predicted residual lung volume on body density measurement
Medicine & Science in Sports & Exercise, 1986The effects of measured and predicted residual lung volume on the accuracy of body density and percent fat (%Fat) were investigated. Adult fitness subjects (N = 46) had residual lung volume measured with the oxygen dilution method while those from an athlete sample (N = 134) utilized the nitrogen washout technique.
J R, Morrow +3 more
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Influence of Lung Volume History on Closing Volume Measurement During Anaesthesia
Acta Anaesthesiologica Scandinavica, 1978Airway closure measurements were made with the bolus technique on eight healthy subjects, who were in a supine position prior to and during anaesthesia. Measurements were made on an expiration following vital capacity (VC) and 30% VC. Closing volume (CV) was calculated prior to anaesthesia, and closing capacity (CC)—functional residual capacity (FRC ...
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Noninvasive measurement of regional interstitial lung volume in sheep
Journal of Applied Physiology, 1988The noninvasive external radioflux detection method (ERD) measures net transvascular flux of tracer protein into and out of the lung extravascular compartment (EV) and time to zero flux between compartments. With this information we can now estimate regional interstitial volume in the field of the external probe (VIs).
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Lung volume measurements in childhood.
Paediatric respiratory reviews, 2004Although less commonly used in clinical practice than spirometry, lung volume measurements are helpful in assessing progress and response to therapy in situations where lung volume is likely to be increased, as in asthma or cystic fibrosis, or reduced secondary to pulmonary hypoplasia, pulmonary fibrosis, or musculoskeletal abnormalities.
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Measurement of lung volume in paralyzed cats
Journal of Applied Physiology, 1974H J, Colebatch, L A, Engel
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