Measurement and classification of heart and lung sounds by using Labview for educational use

Abstract

This study presents the design, development and implementation of a simple low-cost method of phonocardiography signal detection. Human heart and lung signals are detected by using a simple microphone through a personal computer; the signals are recorded and analysed using LabView software. Amplitude and frequency analyses are carried out for various phonocardiography pathological cases. Methods for automatic classification of normal and abnormal heart sounds, murmurs and lung sounds are presented. Various cases of heart and lung sound measurement are recorded and analysed. The measurements can be saved for further analysis. The method in this study can be used by doctors as a detection tool aid and may be useful for teaching purposes at medical and nursing schools.

Keywords:

• Phonocardiography
• Electrocardiography
• Sinoatrial
• Fast Fourier transform

Declaration of interest: The author reports no conflicts of interest. The author alone is responsible for the content and writing of the paper.