P1DH.10 - Development of a Novel Wireless Multi-Channel Stethograph System for Diagnosing Pulmonary and Cardiovascular Diseases
- Event
- 17th International Meeting on Chemical Sensors - IMCS 2018
2018-07-15 - 2018-07-19
Vienna, Austria - Chapter
- P-1 - Sensors for Diagnostics and Healthcare
- Author(s)
- X. Zhang, B. Narakathu, D. Maddipatla, B. Bazuin, M. Atashbar - Western Michigan University, Kalamazoo, Michigan (USA)
- Pages
- 673 - 674
- DOI
- 10.5162/IMCS2018/P1DH.10
- ISBN
- 978-3-9816876-9-9
- Price
- free
Abstract
A multi-channel stethograph system was developed for diagnosing pulmonary and cardiovascular diseases (PCD). An array of 16 microphone sensors was used to record heart, lung and trachea (HLT) sounds of the patients. A 16-channel signal conditioning PCB was used to process the acquired HLT sounds. The HLT sounds are converted to time domain waveforms using a MATLAB® script. From among the converted HLT sounds, an algorithm was developed to analyze the trachea sounds for diagnosing symptoms of chronic obstructive pulmonary disease (COPD) by detecting abnormal respiratory patterns. The capability of the system to diagnose COPD was investigated by determining the respiration rate and respiration ratio, over a test period of 20 seconds. The results demonstrated that the developed algorithm was able to determine a respiration rate and ratio of 21 breaths/minute and 1.5, respectively from the audio signal of a verified COPD patient.