Analysis of measurement electrode location in bladder urine monitoring using electrical impedance

BioMedical Engineering OnLine

Rihui Li¹  Yaning Li²  Xin Yang²  Yinglin Peng²  Shipei Lu²  Chengguang Lin²  Jinwu Gao³ 

[1] Department of Biomedical Engineering, University of Houston;Department of Radiation Oncology, Sun Yat-Sen University Cancer Center;School of Engineering, Sun Yat-Sen University;

关键词: Computational simulation;    Electrical impedance;    Urine monitor;   

DOI  :  10.1186/s12938-019-0651-4

来源: DOAJ

【 摘 要 】

Abstract Purpose The aim of this study was to document more appropriate electrode location of a four-electrode-based electrical impedance technology in the monitoring of bladder filling, and to characterize the relationship between bladder filling duration and the measured electrical impedances. Methods A simulation study, based on a 2-dimension computational model, was conducted to determine the preferable locations of excitation and measurement electrodes in a conventional four-electrode setup. A human observation study was subsequently performed on eight healthy volunteers during natural bladder urine accumulation to validate the result of the simulation study. The correlation between the bladder filling time and the measured electrical impedance values was evaluated. Results The preferable location of measurement electrodes was successively validated by the model simulation study and human observation study. Result obtained via the selected electrodes location revealed a significant negative correlation (R = 0.916 ± 0.059, P < 0.001) between the measured electrical impedance and the urine accumulation time, which was consistent with the result of simulation study. Conclusions The findings in this study not only documented the desirable electrodes location to monitor the process of bladder urine accumulation using four-electrode measurement, but also validated the feasibility of utilizing electrical impedance technique to monitor and estimate the bladder urine volume for those with urological disorders.

【 授权许可】

Unknown