Patent
Ultrasonic transducer drive
TLDR
In this paper, an ultrasonic transducer drive (200) includes a signal generator (202) for producing an outgoing signal (204) and a transducers (206) for converting the outgoing signal(204) to outgoing ultrasound (208), and the transducers may also convert at least a portion of ultrasound reflected by an object to an incoming signal.Abstract:
In some illustrative embodiments, an ultrasonic transducer drive (200) includes a signal generator (202) for producing an outgoing signal (204) and a transducer (206) for converting the outgoing signal (204) to outgoing ultrasound (208). The transducer (204) may also convert at least a portion of ultrasound reflected (210) by an object to an incoming signal (212). The transducer (206) may have a transmit side (214) connected conductably to the signal generator (202) during at least a first predetermined period of time and a receive side (216) connected conductably to a signal receiver (224) during at least a second predetermined period of time.read more
Citations
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Patent
Ultrasound imaging beam-former apparatus and method
TL;DR: In this article, the transducer in an ultrasound imaging beam-former apparatus is applied to an in-phase and a quadrature sample-and-hold (130) and outputs a magnitude.
Patent
Multiple aperture probe internal apparatus and cable assemblies
TL;DR: In this paper, a multiple aperture ultrasound imaging (MAUI) transducer is described, which is capable of simultaneous imaging of a region of interest from separate physical apertures of ultrasound arrays.
Patent
Calibration of ultrasound probes
David M. Smith,Sharon L. Adam,Donald F. Specht,Kenneth D. Brewer,John P. Lunsford,David J. Specht +5 more
TL;DR: In this paper, an ultrasound probe is mounted on a calibration system, and a test signal from an element of the probe through a test medium of the calibration system is transmitted to a matrix of hydrophones such that an element's position relative to other elements and other arrays within the same probe can be computed.
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System and method for combined ecg-echo for cardiac diagnosis
TL;DR: In this article, a system and related method for obtaining volumetric cardiac data of a subject is presented, which is generated by forming a plurality of focused ultrasound images corresponding to a series of ranges, calculating the area of the region defined by said myocardial boundary data for each of the plurality of ultrasound images, multiplying the area by a slice depth corresponding to said ultrasound image to obtain the slice volume of each slice, and summing the slice volumes to obtain a total volume.
Patent
Concave ultrasound transducers and 3d arrays
TL;DR: In this paper, the authors present systems and methods for designing, building and using ultrasound probes having continuous arrays of ultrasound transducers which may have a substantially concave curved shape in two or three dimensions (i.e. concave relative to an object to be imaged).
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
Real-Time Two-Dimensional Blood Flow Imaging Using an Autocorrelation Technique
TL;DR: In this paper, a new blood row imaging system is described that com- bines a conventional pulsed Doppler device and a newly developed AU-to-correlator, in which the direction of blood Row and its variance are expressed by means of a difference in color and its hue, respectively.
PatentDOI
Portable ultrasound imaging system
TL;DR: In this article, a portable ultrasound imaging system includes a scan head coupled by a cable to a portable battery-powered data processor and display unit, including an array of ultrasonic transducers and the circuitry associated therewith.
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.
Patent
Phased array acoustic systems with intra-group processors
Bernard J. Savord,Karl Thiele +1 more
TL;DR: In this article, a transducer array with a very large number of transducers and transducers array with many more transducers than beamformer channels is proposed for ultrasound imaging.