Journal ArticleDOI
Progress in Two-Dimensional Arrays for Real-Time Volumetric Imaging
TLDR
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.About:
This article is published in Ultrasonic Imaging.The article was published on 1998-01-01. It has received 154 citations till now. The article focuses on the topics: Ultrasonic sensor & Transducer.read more
Citations
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Journal ArticleDOI
A review of calibration techniques for freehand 3-D ultrasound systems.
TL;DR: This article is a comprehensive review of what has been published in the field of US probe calibration for 3-D US, covering the topics of tracking technologies, US image acquisition, phantom design, speed of sound issues, feature extraction, least-squares minimization, temporal calibration, calibration evaluation techniques and phantom comparisons.
Journal ArticleDOI
Chemical and Physical Sensing by Organic Field‐Effect Transistors and Related Devices
TL;DR: This Review summarizes recent advances in the use of organic electronic materials for the detection of environmental chemicals, pressure, and light.
Journal ArticleDOI
MRI and CFD studies of pulsatile flow in healthy and stenosed carotid bifurcation models
TL;DR: Pulsatile flow was studied in physiologically realistic models of a normal and a moderately stenosed (30% diameter reduction) human carotid bifurcation to derive wall shear stress vectors and compare qualitatively with the corresponding CFD predictions.
Journal ArticleDOI
Sparse 2-D arrays for 3-D phased array imaging - design methods
Andreas Austeng,Sverre Holm +1 more
TL;DR: This work proposes new methods based on the principles of suppression of grating lobes to form symmetric and non-symmetric regular sparse periodic and radially periodic designs and introduces two new strategies to form designs with nonoverlapping elements.
Journal ArticleDOI
Engineering a freehand 3D ultrasound system
TL;DR: Current techniques for the acquisition, visualisation and quantitative analysis of three-dimensional ultrasound data are surveyed, with particular attention to the design and implementation of freehand systems.
References
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Journal ArticleDOI
Calculation of pressure fields from arbitrarily shaped, apodized, and excited ultrasound transducers
TL;DR: A method for simulation of pulsed pressure fields from arbitrarily shaped, apodized and excited ultrasound transducers is suggested, which relies on the Tupholme-Stepanishen method for calculating pulsing pressure fields and can also handle the continuous wave and pulse-echo case.
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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
High-speed ultrasound volumetric imaging system. II. Parallel processing and image display
TL;DR: The design, application, and evaluation of parallel processing to the high-speed volumetric ultrasound imaging system, which uses pulse-echo phased array principles to steer a 2-D array transducer of 289 elements in a pyramidal scan format is described.
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Real time volumetric ultrasound imaging system.
TL;DR: A real time volumetric ultrasound imaging system has been developed for medical diagnosis that uses pulse-echo phased array principles to steer a two-dimensional array transducer of 289 elements in a pyramidal scan format.
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.