TY - JOUR
T1 - Temperature measurement within myocardium during in vitro RF catheter ablation
AU - Cao, Hong
AU - Vorperian, Vicken R.
AU - Tsai, Jang Zern
AU - Tungjitkusolmun, Supan
AU - Je Woo, Eung
AU - Webster, John G.
N1 - Funding Information:
Manuscript received November 17, 1999; revised July 10, 2000. This work was supported by the National Institutes of Health (NIH) under Grant HL56143. Asterisk indicates corresponding author. H. Cao and J.-Z. Tsai are with the Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706 USA. V. R. Vorperian is with the Department of Medicine, University of Wisconsin-Madison, Madison, WI 53792 USA. S. Tungjitkusolmun is with the Department of Electronics Engineering, King Mongkut’s Institute of Technology Ladkrabang, Ladkrabang, Bangkok 10520, Thailand. E. J. Woo is with the School of Electronics and Information, Kyung Hee University, Kihung-eop, Yongin, Kyongki-do 449-701, Korea. *J. G. Webster is with the Department of Biomedical Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI 53706 USA (e-mail: [email protected]). Publisher Item Identifier S 0018-9294(00)08819-4.
PY - 2000/11
Y1 - 2000/11
N2 - While most commercial ablation units and research systems can provide catheter tip temperature during ablation, they do not provide information about the temperature change inside the myocardium, which determines the lesion size. We present the details of a flow simulation and temperature measurement system, which allows the monitoring of the temperature change inside the myocardium during in vitro radio frequency (RF) cardiac catheter ablation at different blood flow rates to which the catheter site may be exposed. We set up a circulation system that simulated different blood flow rates of 0 to 5 L/min at 37°C. We continuously measured the temperature at the catheter tip using the built-in thermistor and inside the myocardium using a three-thermocouple probe. The system provides a means for further study of the temperature inside myocardium during RF catheter ablation under different flow conditions and at different penetration depths.
AB - While most commercial ablation units and research systems can provide catheter tip temperature during ablation, they do not provide information about the temperature change inside the myocardium, which determines the lesion size. We present the details of a flow simulation and temperature measurement system, which allows the monitoring of the temperature change inside the myocardium during in vitro radio frequency (RF) cardiac catheter ablation at different blood flow rates to which the catheter site may be exposed. We set up a circulation system that simulated different blood flow rates of 0 to 5 L/min at 37°C. We continuously measured the temperature at the catheter tip using the built-in thermistor and inside the myocardium using a three-thermocouple probe. The system provides a means for further study of the temperature inside myocardium during RF catheter ablation under different flow conditions and at different penetration depths.
KW - Electrical interference
KW - Radiofrequency cardiac ablation
KW - Temperature measurement
KW - Thermistor
KW - Thermocouple
UR - http://www.scopus.com/inward/record.url?scp=0034330422&partnerID=8YFLogxK
U2 - 10.1109/10.880104
DO - 10.1109/10.880104
M3 - 期刊論文
C2 - 11077746
AN - SCOPUS:0034330422
SN - 0018-9294
VL - 47
SP - 1518
EP - 1523
JO - IEEE Transactions on Biomedical Engineering
JF - IEEE Transactions on Biomedical Engineering
IS - 11
ER -