Dual lumen transducer probes for real-time 3-D interventional cardiac ultrasound

Ultrasound Med Biol. 2003 Sep;29(9):1297-304. doi: 10.1016/s0301-5629(03)00952-9.


We have developed dual lumen probes incorporating a forward-viewing matrix array transducer with an integrated working lumen for delivery of tools in real-time 3-D (RT3-D) interventional echocardiography. The probes are of 14 Fr and 22 Fr sizes, with 112 channel 2-D arrays operating at 5 MHz. We obtained images of cardiac anatomy and simultaneous interventional device delivery with an in vivo sheep model, including: manipulation of a 0.36-mm diameter guidewire into the coronary sinus, guidance of a transseptal puncture using a 1.2-mm diameter Brockenbrough needle, and guidance of a right ventricular biopsy using 3 Fr biopsy forceps. We have also incorporated the 22 Fr probe within a 6-mm surgical trocar to obtain apical four-chamber ultrasound (US) scans from a subcostal position. Combining the imaging catheter with a working lumen in a single device may simplify cardiac interventional procedures by allowing clinicians to easily visualize cardiac structures and simultaneously direct interventional tools in a RT3-D image.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Animals
  • Biopsy / instrumentation
  • Biopsy / methods
  • Cardiac Catheterization / instrumentation
  • Cardiac Catheterization / methods
  • Echocardiography, Three-Dimensional / instrumentation*
  • Echocardiography, Three-Dimensional / methods
  • Equipment Design
  • Feasibility Studies
  • Models, Animal
  • Phantoms, Imaging
  • Punctures / instrumentation
  • Punctures / methods
  • Sheep
  • Transducers*
  • Ultrasonography, Interventional / instrumentation*
  • Ultrasonography, Interventional / methods