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5673697 |
High-resolution three, dimensional ultrasound imaging device
An acoustic imaging device for providing an image of a body in a medium, includes a plurality of acoustic transmit elements and a plurality of acoustic receive elements, an apparatus for activating...
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5671744 |
Ultrasonic diagnosis apparatus
A reception signal containing phase information and amplitude information is obtained by scanning a cross section of a subject with an ultrasonic wave. An ultrasonic image is formed on the basis of...
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5667393 |
Printed circuit board electrical connector with sealed housing cavity
An electrical connector assembly 2 for use in connecting parallel printed circuit boards includes a receptacle connector 4 and a plug connector 6. The receptacle connector 4 includes receptacle...
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5664572 |
Method for discriminating speckle noises from signals in ultrasonic tomography apparatus and ultrasonic tomography apparatus including speckle noise removing circuit
A discrimination method of speckle noises in an ultrasonic tomography apparatus, includes a step of scanning a predetermined area of an object to be examined by an ultrasonic wave and receiving an...
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5662113 |
Edge enhancement system for ultrasound images
A method for enhancing an ultrasound image. The image is assumed to be in the form of an ordered array of pixels. Each pixel corresponding to the intensity of the echo generated by a corresponding...
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5655535 |
3-Dimensional compound ultrasound field of view
A compounded field of view ultrasound image is derived from correlated frames of ultrasound image data. An operator manually translates an ultrasound probe across a patient target area. Frames of...
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5645066 |
Medical ultrasonic diagnostic imaging system with scanning guide for three dimensional imaging
An ultrasonic diagnostic imaging system is provided with a scanning guide which assists a user in conducting three dimensional ultrasonic scanning of a patient. The guide is visual or audible or...
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5638821 |
Ultrasound diagnostics system for obtaining a tomographic image
A plurality of groups of delay time data corresponding to a plurality of focal distances Fn satisfying a condition that a ratio (Fi-Fi-1 )/(Fi-1-Fi-2) is equal to a constant value higher than one...
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5632277 |
Ultrasound imaging system employing phase inversion subtraction to enhance the image
A method for generating an ultrasound image that enhances regions occupied by non linear scattering media. The method utilizes first and second ultrasound pulses that are alternatively transmitted...
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5630417 |
Method and apparatus for automated control of an ultrasound transducer
An apparatus and method for automatically controlling rotation of a transducer that is mechanically coupled to a motor are disclosed. The apparatus includes a motor controller coupled to the motor...
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5628320 |
Ultrasound image reconstruction using back-propagation
An image of an interrogation region of a patient's body is generated from the return signal from an ultrasound pulse, which is directed into the interrogation region by a transducer array, which...
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5622172 |
Acoustic display system and method for ultrasonic imaging
An ultrasonic imaging system has a three-dimensional acoustic display. Beam-formed ultrasound scan signals are separated into channel signals and are then filtered using head-related transfer...
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5605155 |
Ultrasound system for automatically measuring fetal head size
An ultrasound system automatically measures fetal head size from ultrasound images. An ultrasound image of the fetal head is detected. A radial maxima point is identified on each of a plurality of...
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5603326 |
Method and apparatus for displaying an image obtained by echo signals
In a method for imaging display of a spatially fixed subject with a primary (wave) radiation directed onto the subject, particularly ultrasound, whereby the imaging display ensues with the echo...
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5601083 |
Real time 3D imaging device using filtered ellipsoidal backprojection
An ultrasound ellipsoidal backprojection device includes a receiver element array with each element related to an image reconstruction point angle of a receiver apodizer, the apodizer having an...
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5601082 |
Medical ultrasound imaging
A method of overcoming the ring down problem comprises the steps of generating a reference scan and updating it on the basis of a long term running average and then subtracting that running average...
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5601084 |
Determining cardiac wall thickness and motion by imaging and three-dimensional modeling
A method for imaging and three-dimensional modeling portions of the heart, particularly the left ventricular endocardial and epicardial surfaces, using imaging data. Preferably, a transesophageal...
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5592941 |
Apparatus and method for non-invasively detecting urinary tract infection using ultrasound
An ultrasound signal is transmitted into the center of the bladder. The received backscatter information is gated so that the data which remains is from a sample volume within the bladder and does...
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5588434 |
Ultrasonic diagnostic apparatus presenting closely correlated ultrasonic image
The ultrasonic wave generated by an ultrasonic transducer mounted at the end of an insert assembly scans a region of scanning. Ultrasonic echo is received by the transducer. A video memory stores...
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5588435 |
System and method for automatic measurement of body structures
Human body structures, for example, of a fetus, are automatically measured using ultrasound by first using an ultrasonic transducer or prestored ultrasound scan to generate an image frame as a...
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5582173 |
System and method for 3-D medical imaging using 2-D scan data
A region of tissue is scanned as a series of 2-D frames. The correlation of substantially homogeneous speckle regions in the frames is determined and is compared with a precalibrated speckle...
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5573002 |
Method and apparatus for measuring internal tissue characteristics in feed animals
An ultrasonic apparatus for evaluating internal tissue characteristics in livestock is described. The apparatus comprises a reservoir containing a conductive liquid, an ultrasonic transducer, and a...
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5568811 |
Method for motion encoding of tissue structures in ultrasonic imaging
A method for motion encoding of tissue structures in ultrasonic imaging for investigation of living bodies, comprising the steps of obtaining 2D or volumetric data sets (4) by ultrasonic...
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5566674 |
Method and apparatus for reducing ultrasound image shadowing and speckle
A method and apparatus is provided for generating a spatially compounded ultrasonic image using an image registration method (IR-SC). In the image registration method, a current image frame is...
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5549111 |
Method and apparatus for adjustable frequency scanning in ultrasound imaging
Method for scanning a field of view using a scan format, wherein the carrier frequency of the imaging pulse is higher in the center of the field of view than at the edges. The frequency variation...
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5544654 |
Voice control of a medical ultrasound scanning machine
By using a structured vocabulary where subsets of a total large vocabulary are used for speech recognition to control an ultrasound machine, recognition performance is improved. Where the subsets...
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5540229 |
System and method for viewing three-dimensional echographic data
A system useful echographic examination simulation and training includes an ultrasonic echograph (31) equipped with a TV monitor (32), a 3D probe (33) for analyzing a subject, acquisition means...
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5540228 |
System and method for topographic mapping of ultrasonic image displays
An interrogation region of a patient's body is scanned with an ultrasonic probe. At least one input data frame is generated representing the scanned interrogation region as a pattern of image...
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5538004 |
Method and apparatus for tissue-centered scan conversion in an ultrasound imaging system
A method and apparatus for ultrasound imaging utilize tissue-centered scan conversion to compensate for transducer motion. A reference point, typically located in a region of interest, is selected....
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5535748 |
Real-time graphics on cine playback in ultrasound imaging
A method and an apparatus for displaying the graphics associated with cine images during cine replay in an ultrasound imaging system. A graphics frame array for storing flagged graphics data is...
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5533510 |
Real time ultrasound endocardial displacement display
An ultrasound display apparatus provides a two-dimensional display of a fluid filled cavity and surrounding wall tissue in the form of a sequence of pixel image frames that are shown on a display...
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5531224 |
Framem interpolator for increasing apparent acoustic frame rate in ultrasound imaging
A method and an apparatus for increasing the apparent acoustic frame rate of ultrasound images. Frames of acoustic data are acquired at the acoustic frame rate, stored in double-buffered acoustic...
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5529071 |
Increasing dynamic range with a barrel shifter
A method for increasing dynamic range of ultrasound imaging signals uses a barrel shifter. The barrel shifter shifts large bit two's complement input data into a standard size bit two's complement...
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5529070 |
Acquisition and display of ultrasonic images from sequentially oriented image planes
An ultrasonic imaging system is disclosed which produces a sequence of images of planes of a subject including both image and spatial positional information of the image plane. In one embodiment...
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5522391 |
Delay generator for phased array ultrasound beamformer
A delay generator for a beamformer in a phased array ultrasound imaging system is provided. The beamformer processes received signals from an array of transducer elements to form a receive beam....
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5517994 |
Self diagnostic ultrasonic imaging systems
A method and apparatus are described for testing the integrity of an ultrasonic transducer probe or the ultrasound system connected to the probe. The elements of the transducer are pulsed at a time...
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5515852 |
Method and apparatus for a detection strength spatial filter in an ultrasound imaging system
An ultrasound imaging system where a location in the image has associated with it an amplitude and a velocity derived from a doppler shift assigns a detection strength to each location. Detection...
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5509415 |
Method for reducing vector density based on image size
In a method for maximizing frame rate of an ultrasound imaging apparatus, ultrasound B and color mode vector density are reduced. Initially, an actual displayed image size is determined. A minimum...
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5501219 |
Real-time dynamic time-of-flight calculator
Time-of-flight calculations may be simplified by performing them on the fly at selected intervals and then interpolating the results to obtain a comprehensive set of values. The method and...
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5497777 |
Speckle noise filtering in ultrasound imaging
The enhancement of ultrasound images is provided through the filtering of signal dependent noise such as speckle noise by dividing the signal into selective subintervals and utilizing discrete...
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5495846 |
Ultrasonic diagnostic apparatus
An object of the present invention is to provide an ultrasonic diagnostic apparatus, which detects a moving part and a stationary part within the same frame and selects a suitable arithmetic...
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5495852 |
Method and apparatus for estimating diameter of an artery using B-mode ultrasonic images
An improved apparatus and method for measuring the diameter of an artery utilizes an ultrasonic imaging plane that is rotated slightly from the centerline of an artery to produce a "skew" image of...
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5492125 |
Ultrasound signal processing apparatus
An ultrasound signal processing apparatus provides a programmable platform for various clinical ultrasound applications. The apparatus is part of an ultrasound medical diagnostic imaging system....
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5490510 |
Diagnostic ultrasound apparatus
A diagnostic ultrasound apparatus includes an ultrasound probe for transmitting and receiving ultrasound waves to and from a patient to obtain echo data of the patient, an echo data memory in which...
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5490511 |
Digital phase shifting apparatus
A digital phase shifting apparatus wherein the phase of a train of sampled digital-data is changed by a fine step shorter than a sampling period using a sampling signal with a fixed phase or a...
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5488952 |
Stereoscopically display three dimensional ultrasound imaging
A stereoscopically displayed three dimensional ultrasound imaging system derives image data from an ultrasound imaging apparatus including a two dimensional ultrasound transducer array,...
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5487306 |
Phase aberration correction in phased-array imaging systems
An ultrasonic imaging system for performing a scan in which beamforming time delay errors due to nonuniformity in ultrasound propagation speed within the transmission medium are corrected. The...
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5485842 |
Ultrasonic diagnostic scan conversion for three dimensional display processing
A method and apparatus are provided for processing ultrasonic diagnostic image information acquired in a plurality of scan planes for presentation as a three dimensional display of a volumetric...
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5482044 |
Direct demodulation in ultrasound instruments
A direct digital demodulator for demodulating ultrasound signals. The demodulator includes a baseband demodulator, a magnitude and differential phase generator, and a Doppler preprocessor. The...
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5476096 |
Analysis and measurement of temporal tissue variations
A method for real-time analysis and measurement of temporal tissue variations and ultrasonic signals which provides quality improvement of tissue images and qualitative and quantitative...
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