TY - JOUR
T1 - A 10-Fr ultrasound catheter with integrated micromotor for4-D intracardiac echocardiography
AU - Lee, Warren
AU - Griffin, Weston
AU - Wildes, Douglas
AU - Buckley, Donald
AU - Topka, Terry
AU - Chodakauskas, Thaddeus
AU - Langer, Mark
AU - Calisti, Serge
AU - Bergstøl, Svein
AU - Malacrida, Jean Pierre
AU - Lanteri, Frederic
AU - Maffre, Jennifer
AU - McDaniel, Ben
AU - Shivkumar, Kalyanam
AU - Cummings, Jennifer
AU - Callans, David
AU - Silvestry, Frank
AU - Packer, Douglas
PY - 2011/7
Y1 - 2011/7
N2 - We developed prototype real-time 3-D intracardiac echocardiography catheters with integrated micromotors, allowing internal oscillation of a low-profile 64-element, 6.2-MHz phased-array transducer in the elevation direction. Components were designed to facilitate rotation of the array, including a low-torque flexible transducer interconnect and miniature fixtures for the transducer and micromotor. The catheter tip prototypes were integrated with two-way deflectable 10-Fr catheters and used in in vivo animal testing at multiple facilities. The 4-D ICE catheters were capable of imaging a 90 azimuth by up to 180° elevation field of view. Volume rates ranged from 1 vol/sec (180° elevation) to approximately 10 vol/sec (60° elevation). We successfully imaged electrophysiology catheters, atrial septal puncture procedures, and detailed cardiac anatomy. The elevation oscillation enabled 3-D visualization of devices and anatomy, providing new clinical information and perspective not possible with current 2-D imaging catheters.
AB - We developed prototype real-time 3-D intracardiac echocardiography catheters with integrated micromotors, allowing internal oscillation of a low-profile 64-element, 6.2-MHz phased-array transducer in the elevation direction. Components were designed to facilitate rotation of the array, including a low-torque flexible transducer interconnect and miniature fixtures for the transducer and micromotor. The catheter tip prototypes were integrated with two-way deflectable 10-Fr catheters and used in in vivo animal testing at multiple facilities. The 4-D ICE catheters were capable of imaging a 90 azimuth by up to 180° elevation field of view. Volume rates ranged from 1 vol/sec (180° elevation) to approximately 10 vol/sec (60° elevation). We successfully imaged electrophysiology catheters, atrial septal puncture procedures, and detailed cardiac anatomy. The elevation oscillation enabled 3-D visualization of devices and anatomy, providing new clinical information and perspective not possible with current 2-D imaging catheters.
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U2 - 10.1109/TUFFC.2011.1967
DO - 10.1109/TUFFC.2011.1967
M3 - Article
C2 - 21768032
AN - SCOPUS:79960490860
SN - 0885-3010
VL - 58
SP - 1478
EP - 1491
JO - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
JF - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
IS - 7
M1 - 5954003
ER -