A correlation between the perceived lung sound intensity and the percent-predicted forced expiratory volume over one second (FEV 1) has been reported. Because airflow in the lung produces sound, a generalized reduction in apparent lung sound is one of the indicators of COPD. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Ĭompeting interests: The authors have declared that no competing interests exist.Ĭhronic obstructive pulmonary disease (COPD) is characterized by progressive airflow limitation. All relevant data are within the paper and its Supporting Information files.įunding: This work was supported by the Japan Society for the Promotion of Science Grant-in-Aid for Scientific Research (C) Grant number (24591143). This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: The authors confirm that all data underlying the findings are fully available without restriction. Received: Accepted: AugPublished: September 22, 2014Ĭopyright: © 2014 Mineshita et al. PLoS ONE 9(9):Įditor: Marco Gemma, Scientific Inst. (2014) The Correlation between Lung Sound Distribution and Pulmonary Function in COPD Patients. Citation: Mineshita M, Kida H, Handa H, Nishine H, Furuya N, Nobuyama S, et al.

Emphysema lung sounds