Papers Published

1. Light, E.D. and Idriss, S.F. and Wolf, P.D. and Smith, S.W., Real-time three-dimensional intracardiac echocardiography, Ultrasound Med. Biol. (USA), vol. 27 no. 9 , pp. 1177 - 83 [S0301-5629(01)00421-5] .
   (last updated on 2007/04/13)

   Abstract:
   Using catheter-mounted 2-D array transducers, the authors have obtained real-time 3-D intracardiac ultrasound (US) images. They have constructed several transducers with 64 channels inside a 12 French catheter lumen operating at 5 MHz. The transducer configuration may be side-scanning or beveled, with respect to the long axis of the catheter lumen. The authors have also included six electrodes to aquire simultaneous electrocardiograms. Using an open-chest sheep model, they inserted the catheter into the cardiac chambers to study the utility of in vivo intracardiac 3-D scanning. Images obtained include a cardiac four-chamber view, mitral valve, pulmonic valve, tricuspid valve, interatrial septum, interventricular septum and ventricular volumes. The authors have also imaged two electrophysiological interventional devices in the right atrium, performed an in vitro ablation study, and viewed the pulmonary veins in vitro

   Keywords:
   biomedical transducers;echocardiography;electrocardiography;ultrasonic transducer arrays;