Interest and limitations of the respiratory acoustical impedance

Christian Depeursinge; Florence Depeursinge; Francois Feihl; Claude Perret

doi:10.1109/iembs.1988.94940

Interest and limitations of the respiratory acoustical impedance

Christian Depeursinge^*, Florence Depeursinge, Francois Feihl, Claude Perret

^*Corresponding author for this work

Research output: Contribution to conference › Paper › peer-review

Abstract

The dynamic relationship between pressure and air flow at the mouth is usually described by the frequency dependence of the respiratory acoustical impedance (RAI). The RAI can be measured up to several hundred hertz by the use of forced excitation techniques. The RAI critically depends on the simplifications made in the characterization of the response of the respiratory system. In particular, the limitation of the frequency interval brings about a loss of information. Nonlinearities and nonstationarities are factors limiting the significance of the RAI. Another source of errors and variability for the RAI is the presence of the upper airway shunt. Technical and conceptual improvements in the measurements of the RAI in connection with clinical studies of asthma and vascular congestion are presented.

Original language	English (US)
Pages	696-697
Number of pages	2
DOIs	https://doi.org/10.1109/iembs.1988.94940
State	Published - 1988
Externally published	Yes
Event	Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society - New Orleans, LA, USA Duration: Nov 4 1988 → Nov 7 1988

Other

Other	Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society
City	New Orleans, LA, USA
Period	11/4/88 → 11/7/88

ASJC Scopus subject areas

General Engineering

Access to Document

10.1109/iembs.1988.94940

Cite this

@conference{6772d74e14f94bf5aebef9ac5e4c6480,

title = "Interest and limitations of the respiratory acoustical impedance",

abstract = "The dynamic relationship between pressure and air flow at the mouth is usually described by the frequency dependence of the respiratory acoustical impedance (RAI). The RAI can be measured up to several hundred hertz by the use of forced excitation techniques. The RAI critically depends on the simplifications made in the characterization of the response of the respiratory system. In particular, the limitation of the frequency interval brings about a loss of information. Nonlinearities and nonstationarities are factors limiting the significance of the RAI. Another source of errors and variability for the RAI is the presence of the upper airway shunt. Technical and conceptual improvements in the measurements of the RAI in connection with clinical studies of asthma and vascular congestion are presented.",

author = "Christian Depeursinge and Florence Depeursinge and Francois Feihl and Claude Perret",

year = "1988",

doi = "10.1109/iembs.1988.94940",

language = "English (US)",

pages = "696--697",

note = "Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society ; Conference date: 04-11-1988 Through 07-11-1988",

}

TY - CONF

T1 - Interest and limitations of the respiratory acoustical impedance

AU - Depeursinge, Christian

AU - Depeursinge, Florence

AU - Feihl, Francois

AU - Perret, Claude

PY - 1988

Y1 - 1988

N2 - The dynamic relationship between pressure and air flow at the mouth is usually described by the frequency dependence of the respiratory acoustical impedance (RAI). The RAI can be measured up to several hundred hertz by the use of forced excitation techniques. The RAI critically depends on the simplifications made in the characterization of the response of the respiratory system. In particular, the limitation of the frequency interval brings about a loss of information. Nonlinearities and nonstationarities are factors limiting the significance of the RAI. Another source of errors and variability for the RAI is the presence of the upper airway shunt. Technical and conceptual improvements in the measurements of the RAI in connection with clinical studies of asthma and vascular congestion are presented.

AB - The dynamic relationship between pressure and air flow at the mouth is usually described by the frequency dependence of the respiratory acoustical impedance (RAI). The RAI can be measured up to several hundred hertz by the use of forced excitation techniques. The RAI critically depends on the simplifications made in the characterization of the response of the respiratory system. In particular, the limitation of the frequency interval brings about a loss of information. Nonlinearities and nonstationarities are factors limiting the significance of the RAI. Another source of errors and variability for the RAI is the presence of the upper airway shunt. Technical and conceptual improvements in the measurements of the RAI in connection with clinical studies of asthma and vascular congestion are presented.

UR - http://www.scopus.com/inward/record.url?scp=0024112789&partnerID=8YFLogxK

U2 - 10.1109/iembs.1988.94940

DO - 10.1109/iembs.1988.94940

M3 - Paper

AN - SCOPUS:0024112789

SP - 696

EP - 697

T2 - Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society

Y2 - 4 November 1988 through 7 November 1988

ER -

Interest and limitations of the respiratory acoustical impedance

Abstract

Other

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this