ABSTRACT
Purpose
Small airway disease (SAWD) in patients with interstitial lung disease (ILD) is often assessed by high-resolution computed tomography (HRCT). However, frequent HRCT examinations result in a high level of radiographic exposure. This study investigated the utility of the forced oscillation technique (FOT) to evaluate SAWD in patients with ILD.
Methods
Broadband FOT using a commercially available device (MostGraph-01) and pulmonary function tests (PFT) were performed in 90 patients with ILD. HRCT images taken within 3 months were reviewed. The patients were divided into two groups according to the presence or absence of SAWD findings detected by HRCT. Clinical characteristics, PFT, and FOT between the two groups were compared.
Results
Of the 90 patients with ILD, 19 were classified as having SAWD findings (the presence group) and 71 as not having SAWD findings (the absence group). There were no significant differences in parameters of PFT between the two groups. The presence group had higher absolute values of reactance at 5 Hz (X5), resonant frequency (Fres), and low-frequency reactance area (ALX) than did the absence group. A within-breath change analysis demonstrated that the change in X5, Fres, and ALX between expiration and inspiration (ΔX5, ΔFres, ΔALX, respectively) was significantly different between the groups. A univariate analysis revealed that X5, Fres, ALX, ΔX5, ΔFres, ΔALX were significantly associated with the presence of SAWD findings. Multivariate analysis validated that Fres was related to the presence of SAWD findings.
Conclusions
The FOT may be useful in detecting and evaluating SAWD in patients with ILD. Trial registration: UMIN 000020733.
Similar content being viewed by others
Abbreviations
- ALX:
-
A low-frequency reactance area
- AUC:
-
Area under the curve
- CHP:
-
Chronic hypersensitivity pneumonitis
- COPD:
-
Chronic obstructive pulmonary disease
- CVD:
-
Collagen vascular disease
- CVD-ILD:
-
CVD-associated ILD
- DLCO:
-
Diffusing capacity for carbon monoxide
- EFL:
-
Expiratory flow limitation
- FEV1 :
-
Forced expiratory volume in one second
- FEF25–75 :
-
Forced expiratory flow between 25 and 75 % of the forced vital capacity
- FOT:
-
Forced oscillation technique
- FRC:
-
Functional residual capacity
- Fres:
-
Resonant frequency
- FVC:
-
Forced vital capacity
- HRCT:
-
High-resolution computed tomography
- IC:
-
Inspiratory capacity
- IIP:
-
Idiopathic interstitial pneumonias
- ILD:
-
Interstitial lung disease
- KL-6:
-
Krebs von den Lungen-6
- LDH:
-
Lactate dehydrogenase
- MRC:
-
Medical Research Council
- ROC:
-
Receiver operating characteristic
- Rrs:
-
Respiratory system resistance
- RV:
-
Residual volume
- R5:
-
Rrs at 5 Hz
- R20:
-
Rrs at 20 Hz
- R5–R20:
-
The difference between R5 and R20
- SAWD:
-
Small airway disease
- SP-D:
-
Surfactant protein-D
- TLC:
-
Total lung capacity
- Xrs:
-
Respiratory system reactance
- X5:
-
Reactance 5 Hz
- Δ:
-
The difference between expiratory and inspiratory phases
References
American Thoracic S, European Respiratory S (2002) American thoracic society/European respiratory society International multidisciplinary consensus classification of the idiopathic interstitial pneumonias. This joint statement of the American thoracic society (ATS), and the European respiratory society (ERS) was adopted by the ATS board of directors, June 2001 and by the ERS executive committee, June 2001. Am J Respir Crit Care Med 165(2):277–304. doi:10.1164/ajrccm.165.2.ats01
Travis WD, Costabel U, Hansell DM et al (2013) An official American thoracic society/European respiratory society statement: update of the international multidisciplinary classification of the idiopathic interstitial pneumonias. Am J Respir Crit Care Med 188(6):733–748. doi:10.1164/rccm.201308-1483ST
Nakanishi M, Fukuoka J, Tanaka T et al (2011) Small airway disease associated with Sjogren’s syndrome: clinico-pathological correlations. Respir Med 105(12):1931–1938. doi:10.1016/j.rmed.2011.08.009
Devouassoux G, Cottin V, Liote H et al (2009) Characterisation of severe obliterative bronchiolitis in rheumatoid arthritis. Eur Respir J 33(5):1053–1061. doi:10.1183/09031936.00091608
Pipavath SJ, Lynch DA, Cool C et al (2005) Radiologic and pathologic features of bronchiolitis. AJR Am J Roentgenol 185(2):354–363. doi:10.2214/ajr.185.2.01850354
Hayakawa H, Sato A, Imokawa S et al (1996) Bronchiolar disease in rheumatoid arthritis. Am J Respir Crit Care Med 154(5):1531–1536. doi:10.1164/ajrccm.154.5.8912776
Silva CI, Churg A, Muller NL (2007) Hypersensitivity pneumonitis: spectrum of high-resolution CT and pathologic findings. AJR Am J Roentgenol 188(2):334–344. doi:10.2214/AJR.05.1826
Sharma V, Shaaban AM, Berges G et al (2002) The radiological spectrum of small-airway diseases. Semin Ultrasound CT MR 23(4):339–351
Arakawa H, Webb WR (1998) Air trapping on expiratory high-resolution CT scans in the absence of inspiratory scan abnormalities: correlation with pulmonary function tests and differential diagnosis. AJR Am J Roentgenol 170(5):1349–1353. doi:10.2214/ajr.170.5.9574614
Hansell DM (2001) Small airways diseases: detection and insights with computed tomography. Eur Respir J 17(6):1294–1313
Mori K, Shirai T, Mikamo M et al (2011) Colored 3-dimensional analyses of respiratory resistance and reactance in COPD and asthma. COPD 8(6):456–463. doi:10.3109/15412555.2011.626818
Mikamo M, Shirai T, Mori K et al (2013) Predictors of phase III slope of nitrogen single-breath washout in COPD. Respir Physiol Neurobiol 189(1):42–46. doi:10.1016/j.resp.2013.06.018
Shirai T, Mori K, Mikamo M et al (2013) Respiratory mechanics and peripheral airway inflammation and dysfunction in asthma. Clin Exp Allergy 43(5):521–526. doi:10.1111/cea.12083
Paredi P, Goldman M, Alamen A et al (2010) Comparison of inspiratory and expiratory resistance and reactance in patients with asthma and chronic obstructive pulmonary disease. Thorax 65(3):263–267. doi:10.1136/thx.2009.120790
Gonem S, Umar I, Burke D et al (2012) Airway impedance entropy and exacerbations in severe asthma. Eur Respir J 40(5):1156–1163. doi:10.1183/09031936.00228611
Williamson PA, Clearie K, Menzies D et al (2011) Assessment of small-airways disease using alveolar nitric oxide and impulse oscillometry in asthma and COPD. Lung 189(2):121–129. doi:10.1007/s00408-010-9275-y
Fujii M, Shirai T, Mori K et al (2015) Inspiratory resonant frequency of forced oscillation technique as a predictor of the composite physiologic index in interstitial lung disease. Respir Physiol Neurobiol 207:22–27. doi:10.1016/j.resp.2014.12.009
Oostveen E, MacLeod D, Lorino H et al (2003) The forced oscillation technique in clinical practice: methodology, recommendations and future developments. Eur Respir J 22(6):1026–1041. doi:10.1183/09031936.03.00089403
Miller MR, Hankinson J, Brusasco V et al (2005) Standardisation of spirometry. Eur Respir J 26(2):319–338. doi:10.1183/09031936.05.00034805
Macintyre N, Crapo RO, Viegi G et al (2005) Standardisation of the single-breath determination of carbon monoxide uptake in the lung. Eur Respir J 26(4):720–735. doi:10.1183/09031936.05.00034905
Hansell DM, Bankier AA, MacMahon H et al (2008) Fleischner Society: glossary of terms for thoracic imaging. Radiology 246(3):697–722. doi:10.1148/radiol.2462070712
Sugiyama A, Hattori N, Haruta Y et al (2013) Characteristics of inspiratory and expiratory reactance in interstitial lung disease. Respir Med 107(6):875–882. doi:10.1016/j.rmed.2013.03.005
Mori K, Shirai T, Mikamo M et al (2013) Respiratory mechanics measured by forced oscillation technique in combined pulmonary fibrosis and emphysema. Respir Physiol Neurobiol 185(2):235–240. doi:10.1016/j.resp.2012.10.009
Dellaca RL, Santus P, Aliverti A et al (2004) Detection of expiratory flow limitation in COPD using the forced oscillation technique. Eur Respir J 23(2):232–240
Timmins SC, Diba C, Farrow CE et al (2012) The relationship between airflow obstruction, emphysema extent, and small airways function in COPD. Chest 142(2):312–319. doi:10.1378/chest.11-2169
Verbanck S (2012) Physiological measurement of the small airways. Respiration 84(3):177–188. doi:10.1159/000341742
Koulouris NG, Hardavella G (2011) Physiological techniques for detecting expiratory flow limitation during tidal breathing. Eur Respir Rev 20(121):147–155. doi:10.1183/09059180.00001911
Lynch DA (2009) Lung disease related to collagen vascular disease. J Thorac Imaging 24(4):299–309. doi:10.1097/RTI.0b013e3181c1acec
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that they have no conflict of interest.
Ethical approval
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Informed consent
Informed consent was obtained from all individual participants included in the study.
Rights and permissions
About this article
Cite this article
Mikamo, M., Fujisawa, T., Oyama, Y. et al. Clinical Significance of Forced Oscillation Technique for Evaluation of Small Airway Disease in Interstitial Lung Diseases. Lung 194, 975–983 (2016). https://doi.org/10.1007/s00408-016-9949-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00408-016-9949-1