Research of Disposable Respiratory Filter to the Measurement of Impulse Oscillometery.
10.3969/j.issn.1671-7104.2020.01.017
- Author:
Xuan CHEN
1
;
Wei ZHANG
1
Author Information
1. Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203. ##Email#.
- Publication Type:Journal Article
- Keywords:
impulse oscillometery;
respiratory filter;
spirometry
- MeSH:
Airway Resistance;
Filtration/instrumentation*;
Humans;
Oscillometry
- From:
Chinese Journal of Medical Instrumentation
2020;44(1):76-79
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To study the influence of disposable respiratory filter on the results of impulse oscillometery.
METHODS:90 healthy subjects were randomly selected and impulse oscillometery results were taken repeatedly through disposable respiratory filter and control device. All results were statistically analyzed.
RESULTS:When using the disposable respiratory filter, respiratory impedance (Zrs) and resistance at all frequency (R5Hz-R35Hz) were significantly increased compared with the control device (P<0.01). The two measurements had a significant linear correlation (P<0.01) and a regression equation was established. The disposable respiratory filter did not exist in statistic difference to response frequency (Fres) and the elastic resistance (X5Hz-X15Hz) at all frequency(P>0.05).
CONCLUSIONS:The disposable respiratory filter can be used when testing pulmonary compliance, chest wall disease and obstruction outside the airway in impulse oscillometery system to avoid infection and ensure quality.
