하부요로 폐색 진단을 위한 요류음 주파수 분석
Frequency domain analysis of the urophonography for LUTS diagnosis
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Abstract
The aim of this study is to acquire useful information of lower urinary tract symptom (LUTS) diagnosis throughurophonography signal as a noninvasive method. The hardware and software which could evaluate the function ofurophonography signal during urination. The PSD (power spectrum density) and the log-log plot gradient analysis wereacomplished in frequency domain. For evaluation of the system and analysis method, a model system for the lowerurinary system of men was used. From the evaluation of the model system, the PDS and the log-log plot gradient weredependent on the occlusion degree significantly. In a pilot study on normal and abnormal male subjects, the PSD andthe log-log plot gradient were highly correlated with the artificial urethral obstruction.
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