대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

슬관절 청진음의 주파수 특성에 대한 연구

The Spectral properties of Knee Joint Sounds

  • 김거식 (전북대학 전자공학과) ;
  • 윤대영 (전북대학 메카트로닉스공학과) ;
  • 이명권 (전북대학 전자정보공학부) ;
  • 송창훈 (전북대학 전자정보공학부) ;
  • 김지선 (전북대학 전자정보공학부) ;
  • 박성수 (전북대학 전자정보공학부) ;
  • 김종진 (전북대학 전자정보공학부) ;
  • 김윤정 (전북대학 전자정보공학부) ;
  • 이길성 (전북대학 전자정보공학부) ;
  • 이민회 (전북대학 전자정보공학부) ;
  • 채민수 (전북대학 전자정보공학부) ;
  • 김민주 (전북대학 전자정보공학부) ;
  • 송철규 (전북대학 전자정보공학부)
  • 발행 : 2004.11.12
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초록

The aim of this study was to analyze the characteristics of knee joint sound in frequency domain and classify the knee joint diseases. The spectral analysis of knee joint sounds was performed using LPC(Linear Predictive Coding) and Wigner-Ville distribution. Ten normal subjects and 5 patients with meniscal tearing were enrolled. Each subject was seated on a chair and underwent active knee flexion and extension for 60 seconds. Sampling frequency was 10kHz and electronic stethoscope and electro-goniometer were applied during the knee motion for data collection. The spectral analysis showed 3 peaks in both groups and the difference energy distribution in time-frequency domain. These results suggest that the diagnosis of knee joint pathology using the auscultation could be easier and more correct.

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