Clinical application and technical challenges for intracardiac ultrasound imaging catheter based ICE imaging with EP mapping

Author

Stephens, Douglas N. ; Shung, K. Kirk ; Cannata, Jonathan ; Zhao, JianZhong ; Chia, Raymond ; Nguyen, Hien ; Thomenius, Kai ; Dentinger, Aaron ; Wildes, Douglas G. ; Chen, Xunchang ; O´Donnell, Matthew ; Lowe, Robert I. ; Pemberton, James ; Burch, Grant H

Author_Institution

California Univ., Davis, CA, USA

Volume

1

fYear

2004

fDate

23-27 Aug. 2004

Firstpage

772

Abstract

A 9F combination intracardiac imaging and electrophysiology mapping catheter has been developed and tested to help guide diagnostic and therapeutic intracardiac electrophysiology procedures. A 7.5 MHz, 64 element, side looking phased array was used for sector scanning from the tip of the catheter. Multiple electrophysiology (EP) mapping sensors were mounted as ring electrodes just proximal to the array for electrocardiographic synchronization of ultrasound images. The catheter has been used in vivo in a porcine animal model and has demonstrated useful intracardiac echocardiographic (ICE) visualization of both cardiac tissue and electrophysiology catheters in the right atrium. The catheter performed well in high frame rate imaging, color flow imaging, and strain rate imaging of atrial and ventricular structures.

Keywords

bioelectric phenomena; catheters; echocardiography; patient treatment; 7.5 MHz; EP mapping; ICE imaging; cardiac tissue; catheter tip sector scanning; color flow imaging; diagnostic procedures; electrocardiographic synchronization; high frame rate imaging; in vivo electrophysiology mapping; intracardiac echocardiographic visualization; intracardiac ultrasound imaging; multiple electrophysiology mapping sensors; porcine animal model; right atrium; ring electrodes; side looking phased array; strain rate imaging; therapeutic intracardiac electrophysiology procedures; ultrasound imaging catheter; ventricular structures; Animals; Catheters; Electrodes; Ice; Image sensors; In vivo; Phased arrays; Sensor arrays; Testing; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium, 2004 IEEE

ISSN

1051-0117

Print_ISBN

0-7803-8412-1

Type

conf

DOI

10.1109/ULTSYM.2004.1417836

Filename

1417836