TY - GEN
T1 - Impact of stroke volume determination on pressure-volume relations measured by conductance catheter
AU - Wei, Chia Ling
AU - Kan, Chung Dann
AU - Wang, Jieh Neng
AU - Wang, Yi Wen
AU - Tsai, Mei Ling
PY - 2012
Y1 - 2012
N2 - Murine pressure-volume (PV) relations are typically obtained by using miniaturized conductance catheters, which measure instantaneous ventricular pressure and conductance signals, and then convert the measured conductance to volumes. However, the values of measured conductance are sensitive to many factors, such as catheter position and stroke volume (SV). Two conversion equations, classic Baan's equation and nonlinear Wei's equation, were used by performing in vivo rat experiments. The results showed that how to determine SV from measured pressure and conductance signals significantly affects the loop widths and shapes of the resulting pressure-volume relations. Two methods to determine SV are used and compared in this work to reveal its impacts on the resulting PV loops.
AB - Murine pressure-volume (PV) relations are typically obtained by using miniaturized conductance catheters, which measure instantaneous ventricular pressure and conductance signals, and then convert the measured conductance to volumes. However, the values of measured conductance are sensitive to many factors, such as catheter position and stroke volume (SV). Two conversion equations, classic Baan's equation and nonlinear Wei's equation, were used by performing in vivo rat experiments. The results showed that how to determine SV from measured pressure and conductance signals significantly affects the loop widths and shapes of the resulting pressure-volume relations. Two methods to determine SV are used and compared in this work to reveal its impacts on the resulting PV loops.
UR - http://www.scopus.com/inward/record.url?scp=84874128550&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84874128550&partnerID=8YFLogxK
U2 - 10.1109/BioCAS.2012.6418437
DO - 10.1109/BioCAS.2012.6418437
M3 - Conference contribution
AN - SCOPUS:84874128550
SN - 9781467322935
T3 - 2012 IEEE Biomedical Circuits and Systems Conference: Intelligent Biomedical Electronics and Systems for Better Life and Better Environment, BioCAS 2012 - Conference Publications
SP - 300
EP - 303
BT - 2012 IEEE Biomedical Circuits and Systems Conference
T2 - 2012 IEEE Biomedical Circuits and Systems Conference: Intelligent Biomedical Electronics and Systems for Better Life and Better Environment, BioCAS 2012
Y2 - 28 November 2012 through 30 November 2012
ER -