Results 251 to 260 of about 447,886 (300)
Some of the next articles are maybe not open access.
Extrathoracic airways changes during plethysmographic measurements of lung volume
Respiration Physiology, 1983In six healthy subjects cineradiographic studies during panting against a closed shutter showed widening and narrowing of the whole extrathoracic airways. At the epiglottic level, the mean lateral maximum diameter was 121% of the minimum diameter for an applied pressure of 11.4 cm H2O and 152% for 28.4 cm H2O, while posteroanterior diameter changes ...
D O, Rodenstein +2 more
openaire +2 more sources
Measurement of lung volumes from supine portable chest radiographs
Journal of Applied Physiology, 1979Lung volumes in supine nonambulatory patients are physiological parameters often difficult to measure with current techniques (plethysmograph, gas dilution). Existing radiographic methods for measuring lung volumes require standard upright chest radiographs. Accordingly, in 31 normal supine adults, we determined helium-dilution functional residual and
A L, Ries, J L, Clausen, P J, Friedman
openaire +2 more sources
Measurement of high lung volumes by nitrogen washout method
Journal of Applied Physiology, 1994Studies on human infants suggested that thoracic gas volume (TGV) measured at end exhalation may not depict the true TGV and may differ from TGV measured from a series of higher lung volumes and corrected for the volume added. This was explained by gas trapping.
Y, Sivan, J, Hammer, C J, Newth
openaire +2 more sources
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 ...
openaire +2 more sources
Three‐dimensional sonographic volume measurement of the fetal lung
Journal of Obstetrics and Gynaecology Research, 2007AbstractAim: The objective of this longitudinal study was to evaluate the growth of the fetal lung in normal pregnancies, using 3‐D ultrasound.Methods: 3‐D sonographic examinations were performed on 14 appropriate‐for‐gestational‐age fetuses. Fetal lung volumes (left, right, and total lung volumes) were measured every 2–3 weeks from 20 weeks of ...
Toshiyuki, Hata +8 more
openaire +2 more sources
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
openaire +2 more sources
Measuring end expiratory lung volume after cardiac surgery.
Acta anaesthesiologica Belgica, 2012The aim of this study was to evaluate the interest of end expiratory volume (EELV) measurement after cardiac surgery.After stabilization, four EELV measurements were performed at one hour intervals during three hours using the nitrogen washout technique. EELV was compared to the predicted functional residual capacity (FRC) volume.
MICHIELS, Grégoire +3 more
openaire +2 more sources
Dynamic chest radiography measurements correlate with conventionally measured lung volumes
Clinical respiratory physiology, exercise and functional imaging, 2019Introduction: Dynamic chest radiography (DCR) is a novel technology that allows real time observation of respiratory kinetics and measurement of lung volumes during the respiratory cycle. Aim: To correlate measurements of lung area during deep inspiration on posteroanterior (PA) and lateral DCR images and derived lung volume with Total Lung Capacity ...
Mark Ambrose +7 more
openaire +1 more source
Measurement of Forced Expiratory Flows and Lung Volumes
NeoReviews, 2004After completing this article, readers should be able to: 1. Describe the information that measurements of forced expiratory flow can provide in spontaneously breathing and mechanically ventilated infants. 2. Delineate how lung volume can be measured.
Myrza R. Perez, Daniel J. Weiner
openaire +1 more source
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.
openaire +1 more source