Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Accuracy evaluation of diagnostic parameters estimated by uroflowmetry technique measuring hydraulic pressure

수압측정 방식의 요류검사 진단매개변수의 정확도 평가

  • Kim, Kyung-Ah (Department of Biomedical Engineering, School of Medicine, Chungbuk National University) ;
  • Choi, Seong-Su (Department of Biomedical Engineering, School of Medicine, Chungbuk National University) ;
  • Kim, Sung-Sik (Department of Biomedical Engineering, School of Medicine, Chungbuk National University) ;
  • Kim, Kun-Jin (Department of Biomedical Engineering, School of Medicine, Chungbuk National University) ;
  • Park, Kyung-Soon (Department of Nursing, Munkyung College) ;
  • Cha, Eun-Jong (Department of Biomedical Engineering, School of Medicine, Chungbuk National University)
  • 김경아 (충북대학교 의과대학 의공학교실) ;
  • 최성수 (충북대학교 의과대학 의공학교실) ;
  • 김성식 (충북대학교 의과대학 의공학교실) ;
  • 김군진 (충북대학교 의과대학 의공학교실) ;
  • 박경순 (문경대학 간호학과) ;
  • 차은종 (충북대학교 의과대학 의공학교실)
  • Published : 2007.11.30
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Abstract

Uroflowmetry is of great convenience to diagnose benign prostate hypertrophy common in aged men. The urinary flow rate is obtained by weight measurement using load cell, however, sensitive to impact noise. An alternative technique was recently proposed to measure hydraulic pressure instead of weight and demonstrated to introduce significantly reduced noise. In this paper, we described the measured diagnostic parameters between the weight and pressure measuring techniques in 10 normal men. The weight and pressure signals were simultaneously acquired during urination, converted into urine volumes, then differentiated to obtain flow rate signals, which showed very similar waveforms. Diagnostic parameters evaluated by pressure measuring technique were well correlated with the standard weight measuring technique (correlation coefficient > 0.99). Therefore, the new uroflowmetry based on hydraulic pressure measurement can provide accurate diagnostic parameters, which would be clinically valid.

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References

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