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Frequency domain analysis of the urophonography for LUTS diagnosis

하부요로 폐색 진단을 위한 요류음 주파수 분석

  • Jeong, Do-Un (Division of Computer Information Engineering, Dongseo University) ;
  • Jeon, Gye-Rok (Department of Biomedical Engineering, College of Medicine, Pusan National University)
  • 정도운 (동서대학교 컴퓨터정보공학부) ;
  • 전계록 (부산대학교 의과대학 의공학교실)
  • Published : 2007.05.31

Abstract

The aim of this study is to acquire useful information of lower urinary tract symptom (LUTS) diagnosis through urophonography signal as a noninvasive method. The hardware and software which could evaluate the function of compensatory hypertrophy with noninvasive and comfortable method was implemented to measure uroflow and urophonography signal during urination. The PSD (power spectrum density) and the log-log plot gradient analysis were accomplished in frequency domain. For evaluation of the system and analysis method, a model system for the lower urinary system of men was used. From the evaluation of the model system, the PDS and the log-log plot gradient were dependent on the occlusion degree significantly. In a pilot study on normal and abnormal male subjects, the PSD and the log-log plot gradient were highly correlated with the artificial urethral obstruction.

Keywords

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