心内注射
导管
医学
生物医学工程
应变率成像
超声波
电生理学
放射科
内科学
材料科学
应变率
冶金
作者
Douglas N. Stephens,K. Kirk Shung,Jorge B. Cannata‐Andía,Zhao Jie,Raymond Chia,Kalyanam Shivkumar,Kai E. Thomenius,Aaron Dentinger,Douglas Wildes,Xunchang Chen,M. O’Donnell,Robert I. Lowe,James Pemberton,Grant H. Burch,David J. Sahn
标识
DOI:10.1109/ultsym.2004.1417836
摘要
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.
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