Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

A LabView based respiratory sounds reconstruction tool.

Authors
McKinney-WG; Friend-KA; Reynolds-JS; Frazer-DG; Goldsmith-WT
Source
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
Link
NIOSHTIC No.
20021010
Abstract
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 [1]. 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.
Keywords
Health-care-personnel; Workers; Training; Lung-disease; Respiratory-system-disorders; Pulmonary-system-disorders
Publication Date
20000430
Document Type
Conference/Symposia Proceedings
Fiscal Year
2000
NTIS Accession No.
NTIS Price
NIOSH Division
HELD
Source Name
Proceedings of the 46th International Instrumentation Symposium
State
WV; WA
TOP