Forward Looking Intracardiac Imaging Catheters for Electrophysiology

被引:0
|
作者
Stephens, Douglas N. [1 ]
Cannata, Jonathan [2 ]
Liu, Ruibin [2 ]
Shung, K. Kirk [2 ]
Oralkan, Omer [3 ]
Nikoozadeh, Amin [3 ]
Khuri-Yakub, Pierre [3 ]
Nguyen, Hien [4 ]
Chia, Raymond [4 ]
Dentinger, Aaron [5 ]
Wildes, Douglas [5 ]
Thomenius, Kai E. [5 ]
Mahajan, Aman [6 ]
Shivkumar, Kalyanam [6 ]
Kim, K. [7 ]
O'Donnell, Matthew [7 ]
Sahn, David [8 ]
机构
[1] Univ Calif Davis, Davis, CA 95616 USA
[2] Univ Southern Calif, Los Angeles, CA USA
[3] Stanford Univ, Stanford, CA 94305 USA
[4] Irvine Biomed Corp, Irvine, CA USA
[5] Gen Elect Global Res, New York, NY USA
[6] Univ Calif Los Angeles, Los Angeles, CA USA
[7] Univ Michigan, Ann Arbor, MI USA
[8] Oregon Hlth & Sci Univ, Portland, ME USA
来源
2006 IEEE ULTRASONICS SYMPOSIUM, VOLS 1-5, PROCEEDINGS | 2006年
关键词
forward looking; electrophysiology; intracardiac echo; electroanatomical mapping; guidance; ultrasound; capacitive micromachined ultrasonic transducers; cMUT;
D O I
暂无
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
Minimally invasive electrophysiology interventions to treat cardiac arrhythmias are increasing worldwide due to advances in technologies that enable more effective clinical procedures. A forward imaging ultrasound catheter design has been developed and tested to advance the methods of integration of intracardiac imaging and electrophysiology sensing. The first catheters built have been constructed with a 9F (3mm) shaft and a large (15F) tip to support experimental wire ports adjacent to a 24 element phased array operating at 14MHz. The final tip design construction size will be 9F and possess an integrated metal electrode at the catheter distal end. Two forward looking array designs have been developed in parallel to produce two contrasting fine pitch (65 microns) 24 element phased array construction approaches. The first array has been assembled with a standard 2-2 composite PZT technology with the flex circuit mounted on the front facing side, and the second design is a cMUT version with a flip-chip bonded silicon die bonded to a backside flex circuit. The cMUT design requires a special interface to assure a safe element biasing scheme while enhancing the array's linearity and sensitivity. The first PZT array prototypes, built without explicit matching layers, have been characterized and agree with FEA and KLM analyses in operation at 14MHz. Matching layer variations have been used on the front layer flex circuit to optimize the sensitivity and bandwidth of the PZT arrays while minimizing the thermal boundary layer. Specially designed assembly approaches addressed the challenging forward looking array configurations that utilize interconnection flex circuits with bend radii at 250 microns. Animal studies have been performed utilizing beam forming adaptations for the forward looking imaging catheter operation on a Vingmed Vivid-7 system. The first piezoceramic array devices were used successfully to image the myocardium of the right atrium of a pig while simultaneous tissue ablation was performed.
引用
收藏
页码:702 / +
页数:2
相关论文
共 50 条
  • [31] INTRACARDIAC PRESSURE GUIDED PLACEMENT AND INTRACARDIAC MOVEMENT OF SHUNT CATHETERS
    ASCHOFF, A
    ALBERT, F
    ARNU, T
    HAMPL, J
    HUND, E
    PEIXOTO, J
    STEINER, HH
    NEUROCHIRURGIA, 1989, 32 (01) : 10 - 15
  • [32] A Subspace Projection Method for Forward-looking Imaging
    Yang, Kaixin
    Chen, Jin
    Lin, Haitao
    Shen, Zhao
    2021 IEEE INTERNATIONAL CONFERENCE ON CONSUMER ELECTRONICS AND COMPUTER ENGINEERING (ICCECE), 2021, : 237 - 241
  • [33] Coarray Sampling Methods For Forward Looking IVUS Imaging
    Tekes, Coskun
    Karaman, Mustafa
    BIYOMUT: 2009 14TH NATIONAL BIOMEDICAL ENGINEERING MEETING, 2009, : 273 - 276
  • [34] Is there a role for imaging heart teams? Looking forward together!
    Rob S. B. Beanlands
    Journal of Nuclear Cardiology, 2019, 26 : 1040 - 1041
  • [35] Forward-Looking Intracardiac Ultrasound Imaging Using a 1-D CMUT Array Integrated With Custom Front-End Electronics
    Nikoozadeh, Amin
    Wygant, Ira O.
    Lin, Der-Song
    Oralkan, Oemer
    Ergun, A. Sanh
    Stephens, Douglas N.
    Thomenius, Kai E.
    Dentinger, Aaron M.
    Wildes, Douglas
    Akopyan, Gina
    Shivkumar, Kalyanam
    Mahajan, Aman
    Sahn, David J.
    Khuri-Yakub, Butrus T.
    IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2008, 55 (12) : 2651 - 2660
  • [36] Re-processing electrophysiology catheters
    Bowater, S. E.
    Jones, D.
    Flannigan, S.
    Marshall, H.
    Griffith, M. J.
    HEART, 2008, 94 : A27 - A27
  • [37] SAFETY OF REUSING CARDIAC ELECTROPHYSIOLOGY CATHETERS
    ATON, EA
    MURRAY, P
    FRASER, V
    CONAWAY, L
    CAIN, ME
    AMERICAN JOURNAL OF CARDIOLOGY, 1994, 74 (11): : 1173 - 1175
  • [38] Looking Back, Looking Forward: Scientific and Technological Advances in Multiangle Imaging of Aerosols and Clouds
    Diner, David J.
    Garay, Michael J.
    RADIATION PROCESSES IN THE ATMOSPHERE AND OCEAN, 2017, 1810
  • [39] Phased array radar forward-looking imaging based on correlated imaging
    Ruan F.
    Guo L.
    Li Y.
    Xu R.
    Ruan, Feng, 1600, Chinese Institute of Electronics (43): : 2457 - 2462
  • [40] POTENTIAL APPLICATIONS OF INTRACARDIAC ECHOCARDIOGRAPHY IN INTERVENTIONAL ELECTROPHYSIOLOGY
    TARDIF, JC
    VANNAN, MA
    MILLER, DS
    SCHWARTZ, SL
    PANDIAN, NG
    AMERICAN HEART JOURNAL, 1994, 127 (04) : 1090 - 1094