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The acoustical analysis of knee sound for non-invasive diagnosis of articular pathology  

Kim Keo-Sik (전북대학교 대학원 전자공학과)
Park Gyung-Se (군산대학교 과학기술학부)
Kim Kyeong-Seop (건국대학교 의학공학부)
Song Chul-Gyu (전북대학교 전자정보공학부)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers D / v.54, no.12, 2005 , pp. 737-740 More about this Journal
Abstract
This paper describes the possibility of evaluating and classifying arthritic pathology using the acoustical analysis of knee joint sound. Six normal subjects and 11 patients with knee problems were enrolled. Patients were divided into the 1st patient group which required an orthopeadic surgery and the 2nd patient group of osteoarthritis. During sitting and standing periods, subjects' active knee flexion and extension were monitored. Fundamental frequency, mean amplitude of pitch, jitter and shimmer were analyzed according to the position. The results demonstrate that the values of fundamental frequency, jitter and shimmer of the 2nd patient group were larger than others and changed unstably. The values of the standing position were larger than the sitting position.
Keywords
Knee Joint Sound; Fundamental Frequency; Mean Amplitude; Jitter; Shimmer;
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