NIOSHTIC-2 Publications Search
A LabView based respiratory sounds reconstruction tool.
McKinney-WG; Friend-KA; Reynolds-JS; Frazer-DG; Goldsmith-WT
Proceedings of the 46th International Instrumentation Symposium, April 30-May 4, 2000, Bellevue, WA, Research Triangle Park, NC: International Society for Measurement and Control (ISA), 2000 Apr-May; 397:217-231
The purpose of this project was to develop an auscultatory system capable of training health care workers to identify components of respiratory sounds associated with lung disease. A LabVIEW based playback system accurately recreates respiratory sounds obtained using a previously described recording system . Under ordinary conditions, the original sound is distorted by the amplifier, speaker and surroundings. The reconstruction tool modifies the signal delivered to the speaker in such a way as to reproduce the signal as it was originally generated by the patient. A graphical user interface displays the recorded time signal and time-frequency distribution. Complete respiratory sounds or selected components, such as a single wheeze, can then be played back accurately. Components of the signals are extracted by a time-varying filter, based on user graphical selections. This tool can serve as a user-friendly graphical program which accurately reproduces respiratory sounds for teaching purposes.
Health-care-personnel; Workers; Training; Lung-disease; Respiratory-system-disorders; Pulmonary-system-disorders
Proceedings of the 46th International Instrumentation Symposium
Page last reviewed: May 5, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division