Comparison of inspiratory and expiratory airway volumes ...

Comparison of inspiratory and expiratory airway volumes ... - Nature

The purpose of this study was to compare the inspiratory and expiratory airway volumes and luminal areas on CT among the standing, sitting, and supine ...

Comparison of inspiratory and expiratory airway volumes ... - PubMed

Upright computed tomography (CT) provides physiologically relevant images of daily life postures (sitting and standing). The volume of the ...

Comparison of inspiratory and expiratory lung and lobe volumes ...

The inspiratory and expiratory bilateral upper and lower lobe and lung volumes were significantly higher in the standing/sitting positions than in the supine ...

(PDF) Comparison of inspiratory and expiratory airway volumes and ...

The inspiratory and expiratory airway volumes were significantly higher in the sitting and standing positions than in the supine position ( ...

Comparison of Lung, Lobe, and Airway Volumes between Supine ...

Conclusions: Upright CT-based volumes were more correlated with PFT measurements than supine CT-based volumes in patients with COPD. Unlike ...

Comparison of inspiratory and expiratory lung and lobe volumes ...

The r values comparing the total lung volume changes from expiration to inspiration on CT in the supine/standing/sitting positions and the ...

Lung Volumes - Physiopedia

A number of the lung volumes can be measured by Spirometry- Tidal volume, Inspiratory reserve volume, and Expiratory reserve volume. However, measurement of ...

Inspiratory Reserve Volume - an overview | ScienceDirect Topics

The Reynolds number is used to estimate whether flow is laminar or turbulent. Airway resistance also increases inversely with lung volume because stretch of the ...

(PDF) Comparison of inspiratory and expiratory lung and lobe ...

The r values comparing the total lung volume changes from expiration to inspiration on CT in the supine/standing/sitting positions and the ...

Differences in airway lumen area between supine and upright ...

On paired inspiratory and expiratory CT scans, the EAA/IAA of all bronchi was significantly larger in the standing position than in the supine ...

Inspiratory Reserve Volume - an overview | ScienceDirect Topics

The expiratory reserve volume (ERV) is the difference between the functional residual capacity (FRC) and the RV, or the amount of gas that can be forcibly ...

Comparison of inspiratory and expiratory airway volumes ... - OUCI

AbstractUpright computed tomography (CT) provides physiologically relevant images of daily life postures (sitting and standing). The volume of the human ...

Pulmonary Function Testing - Medscape Reference

... compared with that inhaled volume (the forced inspiratory ... For the FRC to be accurate, a stable end-expiratory lung volume during relaxed tidal ...

Comparison of Lung, Lobe, and Airway Volumes between Supine ...

Conclusions: Upright CT-based volumes were more correlated with PFT measurements than supine CT-based volumes in patients with COPD. Unlike other lobes and ...

Standardisation of the measurement of lung volumes

IRV: inspiratory reserve volume; VT: tidal volume (TV); ERV: expiratory reserve volume; RV: residual volume; IC: inspiratory capacity; FRC: functional residual ...

Inspiratory vs. expiratory pressure-volume curves to set end ...

All airway pressures were higher during ventilation above PMC (Table 2). There were no significant changes in auto-PEEP, static compliance, or ...

Lung volumes - Wikipedia

Lung volumes ; Expiratory reserve volume: the maximal volume of air that can be exhaled from the end-expiratory position · Inspiratory reserve volume: the maximal ...

The physiological basis and clinical significance of lung volume ...

The static lung volumes/capacities are further subdivided into four standard volumes (tidal, inspiratory reserve, expiratory reserve, and ...

Assessment of lung volumes using helical CT at inspiration and ...

resultedin exclusion from the study. Postprocessing. All inspiratory and expiratory scans revealing air spaces or airways were selected f@ ...

Lung Volumes & Capacities - Respiratory - TeachMePhysiology

Lung Volumes ; Tidal volume, Volume that enters and leaves with each breath, from normal quiet inspiration to normal quiet expiration, 0.5L ; Inspiratory reserve ...