A 10-Fr ultrasound catheter with integrated micromotor for4-D intracardiac echocardiography

Warren Lee, Weston Griffin, Douglas Wildes, Donald Buckley, Terry Topka, Thaddeus Chodakauskas, Mark Langer, Serge Calisti, Svein Bergstøl, Jean Pierre Malacrida, Frederic Lanteri, Jennifer Maffre, Ben McDaniel, Kalyanam Shivkumar, Jennifer Cummings, David Callans, Frank Silvestry, Douglas Packer

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

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.

Original languageEnglish (US)
Article number5954003
Pages (from-to)1478-1491
Number of pages14
JournalIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume58
Issue number7
DOIs
StatePublished - Jul 2011

ASJC Scopus subject areas

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering

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    Lee, W., Griffin, W., Wildes, D., Buckley, D., Topka, T., Chodakauskas, T., Langer, M., Calisti, S., Bergstøl, S., Malacrida, J. P., Lanteri, F., Maffre, J., McDaniel, B., Shivkumar, K., Cummings, J., Callans, D., Silvestry, F., & Packer, D. (2011). A 10-Fr ultrasound catheter with integrated micromotor for4-D intracardiac echocardiography. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 58(7), 1478-1491. [5954003]. https://doi.org/10.1109/TUFFC.2011.1967