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Updated: Aug 7, 2026
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Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults
Published on: February 9, 2022
[Modification of inspiratory phase angle behavior in oscilloresistometry]
A Barleben1, R Aurisch, J Vogel
1Forschungsinstitut für Lungenkrankheiten und Tuberkulose, Abt. Pathophysiologie, Berlin.
Zeitschrift Fur Erkrankungen Der Atmungsorgane
|January 1, 1991
Summary
Diagnosing pulmonary emphysema and fibrosis may be possible using the phase angle PSI oscillation method. This study explored intrathoracic blood volume shifts but did not fully achieve its diagnostic goals.
Area of Science:
- Respiratory Medicine
- Physiology
- Medical Imaging
Context:
- Pulmonary emphysema and fibrosis diagnosis presents challenges.
- The phase angle PSI of oscillation method offers a potential diagnostic approach.
- Intrathoracic blood volume shifts may influence respiratory mechanics.
Purpose:
- To investigate the diagnostic potential of the phase angle PSI of oscillation method for pulmonary emphysema and fibrosis.
- To qualitatively assess intrathoracic blood volume shifts during respiration.
- To evaluate thoracic electrical impedance plethysmography and nuclear medicine for these measurements.
Summary:
- The phase angle PSI of oscillation method was explored for diagnosing lung conditions like emphysema and fibrosis.
- Thoracic electrical impedance plethysmography and nuclear medicine were used to study blood volume shifts, but the primary diagnostic aim was not met.
- Unexpected findings in blood flow patterns suggest potential involvement of alveolar vessels.
Impact:
- This research highlights the complexity of respiratory mechanics and blood flow dynamics.
- The study identifies limitations of current methods for assessing intrathoracic blood volume changes.
- Further investigation is needed to refine diagnostic techniques for pulmonary diseases.
