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A conventional voiding cystometry involves artificially filling the bladder with saline and reproduce their symptoms, while making precise measurements in order to identify their underlying causes. However, it is difficult to evaluate physiological functions during storage and voiding of the bladder. In this study, we constructed a portable cystometry device based on hand-held mobile computer, personal...
A conventional method for measuring abdominal pressure involves the use of a fluid-filled rectal catheter. However, this method has some drawbacks, so it is limited to ambulatory urodynamics monitoring study. In this study, we proposed a novel method for estimating abdominal pressure in non invasive manner by changes in bio-impedance and electromyographic (EMG) signals. As a preliminary, we compared...
Ambulatory urodynamics study has the potential to provide measurements of bladder function during activities of daily living. Conventional rectal catheters, which are used for the measurement of abdominal pressure, can cause erroneous results which affect the detrusor pressure, and the catheter itself is not comfortable for the patients. To reduce these problems, we invented a new method of measuring...
In this study, we determined the optimum electrode pair to quantify abdominal pressure using bio-impedance method and compared with conventional methods by rectal catheter. Because impedance changes differ from a weight, a height, contractile force, volume of muscle and blood other or whatever of individuals, it was quantified using correlation coefficient, SNR and IER (impedance-to-EMG ratio) values...
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