TY - JOUR
T1 - Multifunctional catheters combining intracardiac ultrasound imaging and electrophysiology sensing
AU - Stephens, Douglas N.
AU - Cannata, Jonathan
AU - Liu, Ruibin
AU - Zhao, Jian Zhong
AU - Shung, K. Kirk
AU - Nguyen, Hien
AU - Chia, Raymond
AU - Dentinger, Aaron
AU - Wildes, Douglas
AU - Thomenius, Kai E.
AU - Mahajan, Aman
AU - Shivkumar, Kalyanam
AU - Kim, Kang
AU - O'Donnell, Matthew
AU - Nikoozadeh, Amin
AU - Oralkan, Omer
AU - Khuri-Yakub, Pierre T.
AU - Sahn, David J.
PY - 2008/7
Y1 - 2008/7
N2 - A family of 3 multifunctional intracardiac imaging and electrophysiology (EP) mapping catheters has been in development to help guide diagnostic and therapeutic intracardiac EP procedures. The catheter tip on the first device includes a 7.5 MHz, 64-element, side-looking phased array for high resolution sector scanning. The second device is a forward-looking catheter with a 24-element 14 MHz phased array. Both of these catheters operate on a commercial imaging system with standard software. Multiple EP mapping sensors were mounted as ring electrodes near the arrays for electrocardiographic synchronization of ultrasound images and used for unique integration with EP mapping technologies. To help establish the catheters' ability for integration with EP interventional procedures, tests were performed in vivo in a porcine animal model to demonstrate both useful intracardiac echocardiographic (ICE) visualization and simultaneous 3-D positional information using integrated electroanatomical mapping techniques. The catheters also performed well in high frame rate imaging, color now imaging, and strain rate imaging of atrial and ventricular structures. The companion paper of this work discusses the catheter design of the side-looking catheter with special attention to acoustic lens design. The third device in development is a 10 MHz forward-looking ring array that is to be mounted at the distal tip of a 9F catheter to permit use of the available catheter lumen for adjunctive therapy tools.
AB - A family of 3 multifunctional intracardiac imaging and electrophysiology (EP) mapping catheters has been in development to help guide diagnostic and therapeutic intracardiac EP procedures. The catheter tip on the first device includes a 7.5 MHz, 64-element, side-looking phased array for high resolution sector scanning. The second device is a forward-looking catheter with a 24-element 14 MHz phased array. Both of these catheters operate on a commercial imaging system with standard software. Multiple EP mapping sensors were mounted as ring electrodes near the arrays for electrocardiographic synchronization of ultrasound images and used for unique integration with EP mapping technologies. To help establish the catheters' ability for integration with EP interventional procedures, tests were performed in vivo in a porcine animal model to demonstrate both useful intracardiac echocardiographic (ICE) visualization and simultaneous 3-D positional information using integrated electroanatomical mapping techniques. The catheters also performed well in high frame rate imaging, color now imaging, and strain rate imaging of atrial and ventricular structures. The companion paper of this work discusses the catheter design of the side-looking catheter with special attention to acoustic lens design. The third device in development is a 10 MHz forward-looking ring array that is to be mounted at the distal tip of a 9F catheter to permit use of the available catheter lumen for adjunctive therapy tools.
UR - http://www.scopus.com/inward/record.url?scp=47849131072&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=47849131072&partnerID=8YFLogxK
U2 - 10.1109/TUFFC.2008.834
DO - 10.1109/TUFFC.2008.834
M3 - Article
C2 - 18986948
AN - SCOPUS:47849131072
SN - 0885-3010
VL - 55
SP - 1570
EP - 1581
JO - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
JF - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
IS - 7
M1 - 4559656
ER -