Proceedings ArticleDOI
Update of two dimensional arrays for real time volumetric and real time intracardiac imaging
Edward D. Light,Jason O. Fiering,P.A. Hultman,Warren Lee,Stephen W. Smith +4 more
- Vol. 2, pp 1217-1220
TLDR
The authors constructed several arrays for real time intracardiac volumetric imaging based upon 2 different designs; a 13/spl times/11=143 element 5.0 MHz 2-D array for side scanning applications, and a 10/ spl times/10=100 element 7.0 frequencies for side scan applications.Abstract:
The authors have previously described 2-D array transducers with up to several thousand elements operating at frequencies between 2.5 and 5.0 MHz for real time volumetric imaging. Lately, there has been interest in developing catheter based intracardiac imaging systems to aid in the precise tracking of anatomical features and intracardiac devices for improved diagnoses and therapies. The authors constructed several arrays for real time intracardiac volumetric imaging based upon 2 different designs; a 13/spl times/11=143 element 5.0 MHz 2-D array for side scanning applications, and a 10/spl times/10=100 element 7.0 MHz 2-D array for side scanning applications. The 5.0 MHz array fits into a 12 French (3.8 mm OD) catheter and the 7.0 MHz transducer is designed to fit into a 9 French (2.9 mm OD) catheter. The authors also constructed 2 transducers for transthoracic imaging; a 40/spl times/40 5.0 MHz 2-D array, and a 40/spl times/40 7.0 MHz 2-D array. The -6 dB fractional bandwidths for the transducers varied from 27% to 67%. All the transducers were constructed on a 6 layer polyimide interconnect. Both transthoracic and intracardiac volumetric images of ultrasound phantoms and animal models have been obtained using the Duke University real time volumetric imaging system which is capable of generating multiple planes at any desired angle and depth within a pyramidal volume.read more
Citations
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Proceedings ArticleDOI
A minimally invasive ultrasound probe using non-coax cabling
TL;DR: In this paper, the authors describe the use of IMAGIN/sup TM/ probe cable and MICROFLAT/supTM/ ribbon cable for a wiring harness of an ultrasound laparoscope containing a 128 element array.
Journal ArticleDOI
Feasibility study for real time three dimensional Doppler intracardiac echocardiography.
TL;DR: Using catheter-mounted two-dimensional array transducers, real-time three-dimensional color flow and spectral Doppler ultrasound images in phantoms are obtained using an open chest sheep model to study the utility of in vivo 3D intracardiac doppler echocardiography.
Proceedings ArticleDOI
Real-time curvilinear and improved rectilinear volumetric imaging
Jesse T. Yen,Stephen W. Smith +1 more
TL;DR: In this paper, a real-time curvilinear or rectilinear volumetric scan with a wider field of view close to the transducer has been presented for abdominal, breast, or vascular imaging.
Proceedings ArticleDOI
9F-5 Combined 2D Array Transducers/Deployment Kits for Real-Time 3D Ultrasound Guidance of Interventional Devices
Edward D. Light,Stephen W. Smith +1 more
TL;DR: In this paper, a new generation of miniature 2D array transducers integrated into the deployment kits for interventional devices to enable real-time 3D ultrasound scanning for improved guidance of minimally invasive procedures.
Proceedings ArticleDOI
"Synthetic axial acquisition" full resolution C-Scan ultrasonic imaging
TL;DR: In this paper, the Synthetic Axial Acquisition (SAA) approach was proposed for C-Scan imaging. But the SAA approach is limited to a single beamforming condition (center frequency, aperture size and focal depth).
References
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Journal ArticleDOI
High-speed ultrasound volumetric imaging system. I. Transducer design and beam steering
TL;DR: The authors describe the design considerations and preliminary evaluation of a high-speed, online volumetric ultrasound imaging system that uses the principles of pulse-echo, phased array scanning with a 2-D array transducer.
Journal ArticleDOI
An ultrasonic intracardiac scanner.
TL;DR: A 32-element cathetertip system specially developed for instantaneous study of moving cardiac structures based on the sonar-type phase-corrected circular array techniques is described and it is shown that such a catheter can be constructed.
Journal Article
Intravascular ultrasound: development and clinical potential
Journal ArticleDOI
Two-dimensional arrays for medical ultrasound
TL;DR: In this article, the design, fabrication and evaluation of two-dimensional transducer arrays for medical ultrasound imaging is described, and a 4 x 32, 2.8 MHz array was developed to use new signal processing techniques for improved B-scan imaging including elevation focusing, phase correction and synthetic aperture imaging.
Journal ArticleDOI
Progress in Two-Dimensional Arrays for Real-Time Volumetric Imaging
TL;DR: The design, fabrication, and evaluation of two dimensional array transducers for real-time volumetric imaging are described and several new transducers have been developed using new connection technology.