TY - GEN
T1 - Ambulatory urodynamics monitoring system using personal digital assistance
AU - Kim, K. S.
AU - An, Y. S.
AU - Seo, J. H.
AU - Song, C. G.
PY - 2008
Y1 - 2008
N2 - The conventional urodynamics monitoring study is performed by filling artificially the bladder with saline. However, it is difficult to evaluate the physiological functions of the storage and voiding of the bladder. In this study, we constructed an ambulatory urodynamics monitoring system and proposed a novel method for estimating abdominal pressure by bio-impedance changes and EMG activity. The system was evaluated in 10 patients. As the intensity of the abdomen contraction increased, the amplitude of bio-impedance signal and the RMS value of EMG increased as compared to those observed during resting. The correlation coefficient was 0.72 for the "weak" contraction, 0.96 for "strong" contraction, 0.90 for "stronger" contraction, 0.84 for "vigorous" contraction and 0.78 for "maximal" contraction. Also, daily events such as coughing, sneezing and talking, were sensitively monitored by observing the amplitude change of the bio-impedance signals. However, the EMG signals could not be used to detect these events, therefore, bio-impedance method is a more useful tool to measure the changes in the abdominal pressure non-invasively for urodynamic monitoring.
AB - The conventional urodynamics monitoring study is performed by filling artificially the bladder with saline. However, it is difficult to evaluate the physiological functions of the storage and voiding of the bladder. In this study, we constructed an ambulatory urodynamics monitoring system and proposed a novel method for estimating abdominal pressure by bio-impedance changes and EMG activity. The system was evaluated in 10 patients. As the intensity of the abdomen contraction increased, the amplitude of bio-impedance signal and the RMS value of EMG increased as compared to those observed during resting. The correlation coefficient was 0.72 for the "weak" contraction, 0.96 for "strong" contraction, 0.90 for "stronger" contraction, 0.84 for "vigorous" contraction and 0.78 for "maximal" contraction. Also, daily events such as coughing, sneezing and talking, were sensitively monitored by observing the amplitude change of the bio-impedance signals. However, the EMG signals could not be used to detect these events, therefore, bio-impedance method is a more useful tool to measure the changes in the abdominal pressure non-invasively for urodynamic monitoring.
UR - https://www.scopus.com/pages/publications/51249093507
U2 - 10.1109/MUE.2008.54
DO - 10.1109/MUE.2008.54
M3 - Conference paper
AN - SCOPUS:51249093507
SN - 0769531342
SN - 9780769531342
T3 - Proceedings - 2008 International Conference on Multimedia and Ubiquitous Engineering, MUE 2008
SP - 122
EP - 125
BT - Proceedings - 2008 International Conference on Multimedia and Ubiquitous Engineering, MUE 2008
T2 - 2008 International Conference on Multimedia and Ubiquitous Engineering, MUE 2008
Y2 - 24 April 2008 through 26 April 2008
ER -