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Title: Comparison of two devices for respiratory impedance measurement using a forced oscillation technique: basic study using phantom models.
Authors: Tanimura, Kazuya
Hirai, Toyohiro  kyouindb  KAKEN_id
Sato, Susumu  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-9626-1090 (unconfirmed)
Hasegawa, Koichi
Muro, Shigeo  kyouindb  KAKEN_id
Kurosawa, Hajime
Mishima, Michiaki
Author's alias: 平井, 豊博
Keywords: Forced oscillation
Impedance
Resistance
Reactance
Frequency dependence
Issue Date: 18-Jul-2014
Publisher: Springer Japan
Journal title: The journal of physiological sciences
Volume: 64
Issue: 5
Start page: 377
End page: 382
Abstract: Since commercial forced oscillation technique (FOT) devices became available, they have been widely used for physiological assessments, mainly of obstructive lung diseases. However, it is not known whether the impedance values measured with different devices are identical. In this study, two FOT devices-the impulse oscillometry system (IOS) and the MostGraph (MG)-were compared using phantom models. The resistance values varied up to 10% from estimated values in both devices. Additionally, there was a difference in frequency dependence for the resistance between the devices. The reactance values measured with MG were higher than those measured with IOS. The effects of ventilation on the measured impedance values were higher for IOS than for MG, especially at lower frequencies. We concluded that the devices do not always generate identical impedance values. Thus, differences between the devices should be taken into consideration when evaluating clinical data.
Rights: The final publication is available at Springer via http://dx.doi.org/10.1007/s12576-014-0329-4.
この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。This is not the published version. Please cite only the published version.
URI: http://hdl.handle.net/2433/200214
DOI(Published Version): 10.1007/s12576-014-0329-4
PubMed ID: 25034109
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