Distribution of crackles on the flow-volume plane in different pulmonary diseases

Article type: Research Article

Authors: Vanderschoot, J.^a | Helistö, P.^{b; *} | Lipponen, P.^b | Piirilä, P.^c | Sovijärvi, A.R.A.^d

Affiliations: [a] University of Leiden, Medical Informatics, Leiden, the Netherlands | [b] Helsinki University of Technology, Laboratory of Biomedical Engineering, Espoo, Finland | [c] Finnish Institute of Occupational Health, Helsinki, Finland | [d] Helsinki University Central Hospital, Laboratory of Clinical Physiology, Helsinki, Finland

Correspondence: [*] Correspondence to (current address): Panu Helistö, VTT Automation, Measurement Technology, P.O. Box 1304, FIN-02044 VTT, Finland. E-mail: [email protected].

Abstract: A new method to represent and evaluate crackles on the flow-volume plane is described. Characteristic crackle patterns were found in patients with pneumonia, bronchiectasis, chronic obstructive pulmonary disease, heart failure and cryptogenic fibrosing alveolitis. In addition to visual assessment, simple statistical parameters were used to describe the observed pathological phenomena.

DOI: 10.3233/THC-1998-6110

Journal: Technology and Health Care, vol. 6, no. 1, pp. 81-89, 1998