Journal ArticleDOI
Phase aberration correction in two dimensions using a deformable array transducer
L.L. Ries,Stephen W. Smith +1 more
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TLDR
Comparisons of simulations of the new phase correction transducer versus the conventional phase correction technique have shown that a deformable 1 x N or 2 x N transducers can approach the image quality of a 4 x N two-dimensional array or greater.About:
This article is published in Ultrasonic Imaging.The article was published on 1995-07-01. It has received 18 citations till now. The article focuses on the topics: Phased array & Transducer.read more
Citations
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Journal ArticleDOI
Ultrasonic imaging of the human body
TL;DR: The history of ultrasonic imaging is briefly reviewed in this article, where the transducer materials and construction of the probes used in imaging are described, as well as the methods of measuring the ultrasonic field.
PatentDOI
Flexible ultrasonic transducers and related systems
TL;DR: In this article, a flexible support element for a phased array transducer for an ultrasonic imaging system is presented, where shape transducers such as strain gauges or capacitive transducers are coupled to the support element to generate a signal indicative of the instantaneous prevailing curvature of the array.
Patent
Ultrasound transducer array probe for intraluminal imaging catheter
TL;DR: An ultrasound transducer array probe for intraluminal ultrasound imaging is situated on a distal end of a catheter as mentioned in this paper, and the probe has a flex circuit that accepts terminations from a plurality of coaxial cables admitted through the catheter, and electrically conveys these signals to integrated circuits and an ultrasound array acoustic stack, preferably having seventy-two elements.
Journal ArticleDOI
Finite element analysis of a deformable array transducer
L.L. Ries,Stephen W. Smith +1 more
TL;DR: 2-D and 3-D FEA is used to model the experimental results of the deformable array and improve in performance must consider both the ultrasound characterization along with the low frequency actuator characterization.
Patent
Intravascular ultrasound mixed signal multiplexer/pre-amplifier asic
TL;DR: In this article, an ultrasound mixed signal multiplexer/pre-amplifier application specific integrated circuit (ASIC) is proposed for supplying voltages to a group of elements of an ultrasound array, receiving voltages from the same or another group of element of the array, and amplifying the received voltages for transmission to external circuitry.
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.
Journal ArticleDOI
Comprehensive compilation of empirical ultrasonic properties of mammalian tissues
TL;DR: A detailed review of the literature on ultrasonic propagation properties of mammalian tissues and organs has revealed 144 papers containing compilable data, including over 1300 lines of parametric data.
Journal ArticleDOI
Phase-aberration correction using signals from point reflectors and diffuse scatterers: basic principles
S.W. Flax,Matthew O'Donnell +1 more
TL;DR: The method presented here has no need for a beacon or an ideal point reflector to act as a source for estimating phase errors, and uses signals from random collections of scatterers to determine phase aberrations accurately.
Journal ArticleDOI
Phase aberration correction in medical ultrasound using speckle brightness as a quality factor
TL;DR: A method is proposed to correct for unknown phase aberration, which uses speckle brightness as a quality factor, analogous to the correction technique used by Muller and Buffington to adaptively focus incoherent optical telescopes.
Journal ArticleDOI
The Time‐Dependent Force and Radiation Impedance on a Piston in a Rigid Infinite Planar Baffle
TL;DR: In this article, an approach to compute the time-dependent force acting on a piston in a rigid infinite planar baffle as a result of the specified velocity of the piston is presented.
Related Papers (5)
Correction of phase aberrations for sectored annular array ultrasound transducers
Simulation of B-scan images from two-dimensional transducer arrays: Part I--Methods and quantitative contrast measurements.
Synthetic receive aperture imaging with phase correction for motion and for tissue inhomogeneities. II. Effects of and correction for motion
Gregg E. Trahey,L.F. Nock +1 more