DE19681275T1 - Sendestrahlformer mit frequenzabhängigem Fokus - Google Patents
Sendestrahlformer mit frequenzabhängigem FokusInfo
- Publication number
- DE19681275T1 DE19681275T1 DE19681275T DE19681275T DE19681275T1 DE 19681275 T1 DE19681275 T1 DE 19681275T1 DE 19681275 T DE19681275 T DE 19681275T DE 19681275 T DE19681275 T DE 19681275T DE 19681275 T1 DE19681275 T1 DE 19681275T1
- Authority
- DE
- Germany
- Prior art keywords
- frequency
- dependent focus
- transmitting beamformer
- beamformer
- transmitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
- G01N29/341—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with time characteristics
- G01N29/343—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with time characteristics pulse waves, e.g. particular sequence of pulses, bursts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
- G01N29/2456—Focusing probes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
- G01N29/2462—Probes with waveguides, e.g. SAW devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/262—Arrangements for orientation or scanning by relative movement of the head and the sensor by electronic orientation or focusing, e.g. with phased arrays
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
- G01N29/348—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with frequency characteristics, e.g. single frequency signals, chirp signals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
- G01N29/40—Detecting the response signal, e.g. electronic circuits specially adapted therefor by amplitude filtering, e.g. by applying a threshold or by gain control
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
- G01N29/42—Detecting the response signal, e.g. electronic circuits specially adapted therefor by frequency filtering or by tuning to resonant frequency
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
- G01N29/46—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by spectral analysis, e.g. Fourier analysis or wavelet analysis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/8909—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/895—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques characterised by the transmitted frequency spectrum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52023—Details of receivers
- G01S7/52034—Data rate converters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52023—Details of receivers
- G01S7/52036—Details of receivers using analysis of echo signal for target characterisation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52023—Details of receivers
- G01S7/52036—Details of receivers using analysis of echo signal for target characterisation
- G01S7/52038—Details of receivers using analysis of echo signal for target characterisation involving non-linear properties of the propagation medium or of the reflective target
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52023—Details of receivers
- G01S7/52036—Details of receivers using analysis of echo signal for target characterisation
- G01S7/52038—Details of receivers using analysis of echo signal for target characterisation involving non-linear properties of the propagation medium or of the reflective target
- G01S7/52039—Details of receivers using analysis of echo signal for target characterisation involving non-linear properties of the propagation medium or of the reflective target exploiting the non-linear response of a contrast enhancer, e.g. a contrast agent
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52046—Techniques for image enhancement involving transmitter or receiver
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52046—Techniques for image enhancement involving transmitter or receiver
- G01S7/52047—Techniques for image enhancement involving transmitter or receiver for elimination of side lobes or of grating lobes; for increasing resolving power
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
- G10K11/341—Circuits therefor
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/26—Sound-focusing or directing, e.g. scanning
- G10K11/34—Sound-focusing or directing, e.g. scanning using electrical steering of transducer arrays, e.g. beam steering
- G10K11/341—Circuits therefor
- G10K11/343—Circuits therefor using frequency variation or different frequencies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/01—Indexing codes associated with the measuring variable
- G01N2291/012—Phase angle
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/01—Indexing codes associated with the measuring variable
- G01N2291/015—Attenuation, scattering
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/10—Number of transducers
- G01N2291/106—Number of transducers one or more transducer arrays
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52019—Details of transmitters
- G01S7/5202—Details of transmitters for pulse systems
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/397,833 US5608690A (en) | 1995-03-02 | 1995-03-02 | Transmit beamformer with frequency dependent focus |
PCT/US1996/002622 WO1996027152A1 (en) | 1995-03-02 | 1996-02-27 | Transmit beamformer with frequency dependent focus |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19681275T1 true DE19681275T1 (de) | 1998-02-26 |
Family
ID=23572843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19681275T Ceased DE19681275T1 (de) | 1995-03-02 | 1996-02-27 | Sendestrahlformer mit frequenzabhängigem Fokus |
Country Status (4)
Country | Link |
---|---|
US (6) | US5608690A (de) |
AU (1) | AU5299296A (de) |
DE (1) | DE19681275T1 (de) |
WO (1) | WO1996027152A1 (de) |
Families Citing this family (157)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3829999A1 (de) * | 1988-09-01 | 1990-03-15 | Schering Ag | Ultraschallverfahren und schaltungen zu deren durchfuehrung |
US5743855A (en) * | 1995-03-03 | 1998-04-28 | Acuson Corporation | Broadband phased array transducer design with frequency controlled two dimension capability and methods for manufacture thereof |
AU3361095A (en) | 1994-08-05 | 1996-03-04 | Acuson Corporation | Method and apparatus for transmit beamformer system |
US5675554A (en) * | 1994-08-05 | 1997-10-07 | Acuson Corporation | Method and apparatus for transmit beamformer |
US5540909A (en) * | 1994-09-28 | 1996-07-30 | Alliance Pharmaceutical Corp. | Harmonic ultrasound imaging with microbubbles |
US6126600A (en) * | 1994-12-02 | 2000-10-03 | Oxaal; John T | Ultrasound image assisted administering of medication |
GB9425577D0 (en) * | 1994-12-19 | 1995-02-15 | Power Jeffrey | Acoustic transducers with controlled directivity |
US6009046A (en) * | 1995-03-02 | 1999-12-28 | Acuson Corporation | Ultrasonic harmonic imaging system and method |
US6005827A (en) * | 1995-03-02 | 1999-12-21 | Acuson Corporation | Ultrasonic harmonic imaging system and method |
US6104670A (en) * | 1995-03-02 | 2000-08-15 | Acuson Corporation | Ultrasonic harmonic imaging system and method |
US5608690A (en) * | 1995-03-02 | 1997-03-04 | Acuson Corporation | Transmit beamformer with frequency dependent focus |
US6122223A (en) * | 1995-03-02 | 2000-09-19 | Acuson Corporation | Ultrasonic transmit waveform generator |
US6027448A (en) * | 1995-03-02 | 2000-02-22 | Acuson Corporation | Ultrasonic transducer and method for harmonic imaging |
US5833613A (en) | 1996-09-27 | 1998-11-10 | Advanced Technology Laboratories, Inc. | Ultrasonic diagnostic imaging with contrast agents |
DE69736549T2 (de) | 1996-02-29 | 2007-08-23 | Acuson Corp., Mountain View | System, verfahren und wandler zum ausrichten mehrerer ultraschallbilder |
GB9611801D0 (en) * | 1996-06-06 | 1996-08-07 | Univ Bristol | Apparatus for and method of detecting a reflector with a medium |
US5846202A (en) * | 1996-07-30 | 1998-12-08 | Acuson Corporation | Ultrasound method and system for imaging |
US5879303A (en) * | 1996-09-27 | 1999-03-09 | Atl Ultrasound | Ultrasonic diagnostic imaging of response frequency differing from transmit frequency |
US6283919B1 (en) | 1996-11-26 | 2001-09-04 | Atl Ultrasound | Ultrasonic diagnostic imaging with blended tissue harmonic signals |
US5908389A (en) * | 1996-09-27 | 1999-06-01 | Atl Ultrasound, Inc. | Ultrasonic diagnostic imaging of harmonic frequencies with speckle reduction processing |
US7104956B1 (en) * | 1996-11-08 | 2006-09-12 | Research Corporation Technologies, Inc. | Finite amplitude distortion-based inhomogeneous pulse echo ultrasonic imaging |
US6458083B1 (en) | 1996-11-26 | 2002-10-01 | Koninklijke Philips Electronics N.V. | Ultrasonic harmonic imaging with adaptive image formation |
US6030344A (en) * | 1996-12-04 | 2000-02-29 | Acuson Corporation | Methods and apparatus for ultrasound image quantification |
US5891038A (en) * | 1996-12-30 | 1999-04-06 | General Electric Company | Method, apparatus and applications for combining transmit wave functions to obtain synthetic waveform in ultrasonic imaging system |
US5720708A (en) * | 1997-01-02 | 1998-02-24 | Mayo Foundation For Medical Education And Research | High frame rate imaging with limited diffraction beams |
KR100252727B1 (ko) * | 1997-02-04 | 2000-04-15 | 이민화 | 실시간디지털집속을위한집속지연계산방법및그장치 |
US5923617A (en) * | 1997-02-05 | 1999-07-13 | The United States Of America As Represented By The Secretary Of The Navy | Frequency-steered acoustic beam forming system and process |
US5882306A (en) * | 1997-04-11 | 1999-03-16 | Acuson Corporation | Ultrasound imaging methods and systems |
US6110120A (en) | 1997-04-11 | 2000-08-29 | Acuson Corporation | Gated ultrasound imaging apparatus and method |
US6050944A (en) * | 1997-06-17 | 2000-04-18 | Acuson Corporation | Method and apparatus for frequency control of an ultrasound system |
EP1626289A3 (de) * | 1997-07-15 | 2008-06-11 | Acuson Corporation | System und Verfahren zur harmonischen Ultraschallbildgebung |
US5913823A (en) * | 1997-07-15 | 1999-06-22 | Acuson Corporation | Ultrasound imaging method and system for transmit signal generation for an ultrasonic imaging system capable of harmonic imaging |
US5833614A (en) * | 1997-07-15 | 1998-11-10 | Acuson Corporation | Ultrasonic imaging method and apparatus for generating pulse width modulated waveforms with reduced harmonic response |
US6193659B1 (en) | 1997-07-15 | 2001-02-27 | Acuson Corporation | Medical ultrasonic diagnostic imaging method and apparatus |
US6023977A (en) * | 1997-08-01 | 2000-02-15 | Acuson Corporation | Ultrasonic imaging aberration correction system and method |
US6132374A (en) * | 1997-08-01 | 2000-10-17 | Acuson Corporation | Ultrasonic imaging method and system |
US6312379B1 (en) | 1997-08-15 | 2001-11-06 | Acuson Corporation | Ultrasonic harmonic imaging system and method using waveform pre-distortion |
US5944666A (en) * | 1997-08-21 | 1999-08-31 | Acuson Corporation | Ultrasonic method for imaging blood flow including disruption or activation of contrast agent |
US6106465A (en) * | 1997-08-22 | 2000-08-22 | Acuson Corporation | Ultrasonic method and system for boundary detection of an object of interest in an ultrasound image |
US5873830A (en) * | 1997-08-22 | 1999-02-23 | Acuson Corporation | Ultrasound imaging system and method for improving resolution and operation |
US5928151A (en) * | 1997-08-22 | 1999-07-27 | Acuson Corporation | Ultrasonic system and method for harmonic imaging in three dimensions |
US5860931A (en) * | 1997-10-10 | 1999-01-19 | Acuson Corporation | Ultrasound method and system for measuring perfusion |
US5935069A (en) * | 1997-10-10 | 1999-08-10 | Acuson Corporation | Ultrasound system and method for variable transmission of ultrasonic signals |
US5931785A (en) * | 1997-10-30 | 1999-08-03 | Hewlett-Packard Company | Ultrasonic transducer having elements arranged in sections of differing effective pitch |
US5980457A (en) * | 1997-11-17 | 1999-11-09 | Atl Ultrasound, Inc. | Ultrasonic transmit pulses for nonlinear ultrasonic imaging |
US5897500A (en) * | 1997-12-18 | 1999-04-27 | Acuson Corporation | Ultrasonic imaging system and method for displaying composite fundamental and harmonic images |
US5891037A (en) * | 1997-12-18 | 1999-04-06 | Acuson Corporation | Ultrasonic Doppler imaging system with frequency dependent focus |
US5935070A (en) * | 1997-12-31 | 1999-08-10 | Analogic Corporation | Method and apparatus for delaying ultrasound signals |
US6176829B1 (en) * | 1998-02-26 | 2001-01-23 | Echocath, Inc. | Multi-beam diffraction grating imager apparatus and method |
US5984869A (en) * | 1998-04-20 | 1999-11-16 | General Electric Company | Method and apparatus for ultrasonic beamforming using golay-coded excitation |
US6102858A (en) * | 1998-04-23 | 2000-08-15 | General Electric Company | Method and apparatus for three-dimensional ultrasound imaging using contrast agents and harmonic echoes |
US6036643A (en) * | 1998-05-14 | 2000-03-14 | Advanced Technology Laboratories, Inc. | Ultrasonic harmonic doppler imaging |
US5957852A (en) * | 1998-06-02 | 1999-09-28 | Acuson Corporation | Ultrasonic harmonic imaging system and method |
US6511426B1 (en) | 1998-06-02 | 2003-01-28 | Acuson Corporation | Medical diagnostic ultrasound system and method for versatile processing |
US6116244A (en) * | 1998-06-02 | 2000-09-12 | Acuson Corporation | Ultrasonic system and method for three-dimensional imaging with opacity control |
US5976091A (en) * | 1998-06-08 | 1999-11-02 | Acuson Corporation | Limited diffraction broadband phased array transducer with frequency controlled two dimensional aperture capability |
US5971925A (en) * | 1998-06-08 | 1999-10-26 | Acuson Corporation | Broadband phased array transducer with frequency controlled two dimensional aperture capability for harmonic imaging |
US5961464A (en) * | 1998-09-16 | 1999-10-05 | Hewlett-Packard Company | Ultrasound contrast agent detection using spectral analysis from acoustic scan lines |
US6544177B1 (en) | 1998-10-01 | 2003-04-08 | Atl Ultrasound, Inc. | Ultrasonic diagnostic imaging system and method with harmonic spatial compounding |
US6048316A (en) * | 1998-10-16 | 2000-04-11 | Acuson Corporation | Medical diagnostic ultrasonic imaging system and method for displaying composite fundamental and harmonic images |
US6042545A (en) * | 1998-11-25 | 2000-03-28 | Acuson Corporation | Medical diagnostic ultrasound system and method for transform ultrasound processing |
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US5632277A (en) * | 1996-06-28 | 1997-05-27 | Siemens Medical Systems, Inc. | Ultrasound imaging system employing phase inversion subtraction to enhance the image |
US5846200A (en) * | 1996-11-08 | 1998-12-08 | Advanced Technology Laboratories, Inc. | Ultrasonic diagnostic imaging system for analysis of left ventricular function |
EP0851241B1 (de) * | 1996-11-26 | 2006-05-24 | ATL Ultrasound, Inc. | Diagnostik-Bilderzeugung mittels Ultraschall unterschiedlicher Sende- und Empfangsfrequenz |
EP0982036A1 (de) * | 1998-08-28 | 2000-03-01 | Wilex Biotechnology GmbH | Beeinflussung der Beta-2-Integrin-Vermittelnde Zelladhäsion |
-
1995
- 1995-03-02 US US08/397,833 patent/US5608690A/en not_active Expired - Lifetime
-
1996
- 1996-02-27 AU AU52992/96A patent/AU5299296A/en not_active Abandoned
- 1996-02-27 DE DE19681275T patent/DE19681275T1/de not_active Ceased
- 1996-02-27 WO PCT/US1996/002622 patent/WO1996027152A1/en active Application Filing
- 1996-05-03 US US08/642,528 patent/US5740128A/en not_active Expired - Lifetime
- 1996-12-16 US US08/771,345 patent/US5696737A/en not_active Expired - Lifetime
-
1997
- 1997-09-05 US US08/926,270 patent/US5933389A/en not_active Expired - Lifetime
-
1999
- 1999-05-07 US US09/307,491 patent/US6122222A/en not_active Expired - Lifetime
- 1999-08-02 US US09/366,110 patent/US6108273A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6122222A (en) | 2000-09-19 |
US5608690A (en) | 1997-03-04 |
US5740128A (en) | 1998-04-14 |
US6108273A (en) | 2000-08-22 |
AU5299296A (en) | 1996-09-18 |
US5696737A (en) | 1997-12-09 |
WO1996027152A1 (en) | 1996-09-06 |
US5933389A (en) | 1999-08-03 |
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