The physiological basis and clinical significance of lung volume measurements. [PDF]
From a physiological standpoint, the lung volumes are either dynamic or static. Both subclasses are measured at different degrees of inspiration or expiration; however, dynamic lung volumes are characteristically dependent on the rate of air flow. The static lung volumes/capacities are further subdivided into four standard volumes (tidal, inspiratory ...
Lutfi MF.
europepmc +7 more sources
Lung volume measurements [PDF]
To the Editor: I read with interest the impressive paper by Cazzola et al. 1 in a recent issue of the European Respiratory Journal . However, I felt somewhat uneasy reading the recommendations on lung volume measurements, i.e. closing circuit dilution …
Dan Stánescu
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The repeatability of computed tomography lung volume measurements: Comparisons in healthy subjects, patients with obstructive lung disease, and patients with restrictive lung disease. [PDF]
In this study, we examined the repeatability of computed tomography (CT) lung volume measurements in healthy individuals and patients with obstructive and restrictive lung diseases. To do this, we retrospectively enrolled 200 healthy individuals (group 1)
Jae Min Shin+7 more
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Flow-Volume Parameters in COPD Related to Extended Measurements of Lung Volume, Diffusion, and Resistance [PDF]
Classification of COPD into different GOLD stages is based on forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC) but has shown to be of limited value.
Linnea Jarenbäck+3 more
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Heart Rate Monitoring During Different Lung Volume Phases Using Seismocardiography [PDF]
Seismocardiography (SCG) is a non-invasive method that can be used for cardiac activity monitoring. This paper presents a new electrocardiogram (ECG) independent approach for estimating heart rate (HR) during low and high lung volume (LLV and HLV, respectively) phases using SCG signals.
Bomar, Andrew J+3 more
arxiv +3 more sources
Supine posture changes lung volumes and increases ventilation heterogeneity in cystic fibrosis. [PDF]
Lung Clearance Index (LCI) is recognised as an early marker of cystic fibrosis (CF) lung disease. The effect of posture on LCI however is important when considering longitudinal measurements from infancy and when comparing LCI to imaging studies.35 ...
Laurie J Smith+9 more
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Volumetric Measurements of Lung Nodules with Multi-Detector Row CT: Effect of Changes in Lung Volume [PDF]
OBJECTIVE: To evaluate how changes in lung volume affect volumetric measurements of lung nodules using a multi-detector row CT. MATERIALS AND METHODS: Ten subjects with asthma or chronic bronchitis who had one or more lung nodules were included. For each
Awai+27 more
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Lung volume measurements in infants with and without chronic lung disease [PDF]
Infants born prematurely who develop chronic lung disease (CLD) have airways obstruction and hence may have low lung volume. The aim of this study was to test that hypothesis and ascertain whether the nature of the comparison control group influenced the results.
V. Kavvadia+3 more
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Plethysmographic measurements of lung volume and airway resistance [PDF]
Functional residual capacity (FRC) is the only static lung volume that can be measured routinely in infants. It is important for interpreting volume-dependent pulmonary mechanics such as airway resistance or forced expiratory flows, and for defining normal lung growth.
Janet Stocks+4 more
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Accuracy and precision of end-expiratory lung-volume measurements by automated nitrogen washout/washin technique in patients with acute respiratory distress syndrome [PDF]
Introduction End-expiratory lung volume (EELV) is decreased in acute respiratory distress syndrome (ARDS), and bedside EELV measurement may help to set positive end-expiratory pressure (PEEP).
Beduneau, Gaetan+12 more
core +9 more sources