DE69529798D1 - Ultraschallfeststellung von Kontrastmittel - Google Patents

Ultraschallfeststellung von Kontrastmittel

Info

Publication number
DE69529798D1
DE69529798D1 DE69529798T DE69529798T DE69529798D1 DE 69529798 D1 DE69529798 D1 DE 69529798D1 DE 69529798 T DE69529798 T DE 69529798T DE 69529798 T DE69529798 T DE 69529798T DE 69529798 D1 DE69529798 D1 DE 69529798D1
Authority
DE
Germany
Prior art keywords
signals
following
pulse transmission
signals received
received
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.)
Expired - Fee Related
Application number
DE69529798T
Other languages
English (en)
Other versions
DE69529798T2 (de
Inventor
Keith W Johnson
Jeffry E Powers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Advanced Technology Laboratories Inc
Original Assignee
Advanced Technology Laboratories Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Advanced Technology Laboratories Inc filed Critical Advanced Technology Laboratories Inc
Publication of DE69529798D1 publication Critical patent/DE69529798D1/de
Application granted granted Critical
Publication of DE69529798T2 publication Critical patent/DE69529798T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/48—Diagnostic techniques
    • A61B8/481—Diagnostic techniques involving the use of contrast agent, e.g. microbubbles introduced into the bloodstream
    • 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
    • G01S7/52041—Details of receivers using analysis of echo signal for target characterisation involving non-linear properties of the propagation medium or of the reflective target detecting modification of a contrast enhancer, e.g. detecting the destruction of a contrast agent by an acoustic wave, e.g. loss of correlation
    • 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
    • G01S7/52049—Techniques for image enhancement involving transmitter or receiver using correction of medium-induced phase aberration
DE69529798T 1994-11-23 1995-11-22 Ultraschallfeststellung von Kontrastmittel Expired - Fee Related DE69529798T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/344,266 US5456257A (en) 1994-11-23 1994-11-23 Ultrasonic detection of contrast agents
US344266 1994-11-23

Publications (2)

Publication Number Publication Date
DE69529798D1 true DE69529798D1 (de) 2003-04-10
DE69529798T2 DE69529798T2 (de) 2004-02-12

Family

ID=23349769

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69529798T Expired - Fee Related DE69529798T2 (de) 1994-11-23 1995-11-22 Ultraschallfeststellung von Kontrastmittel

Country Status (5)

Country Link
US (1) US5456257A (de)
EP (1) EP0713680B1 (de)
JP (1) JP3675916B2 (de)
AT (1) ATE233518T1 (de)
DE (1) DE69529798T2 (de)

Families Citing this family (116)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5678553A (en) * 1994-11-01 1997-10-21 Schering Aktiengesellschaft Ultrasonic processes and circuits for carrying out those processes
JP3488541B2 (ja) * 1995-06-09 2004-01-19 株式会社東芝 超音波診断装置
US5608690A (en) * 1995-03-02 1997-03-04 Acuson Corporation Transmit beamformer with frequency dependent focus
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
US6027448A (en) * 1995-03-02 2000-02-22 Acuson Corporation Ultrasonic transducer and method for harmonic imaging
US6009046A (en) * 1995-03-02 1999-12-28 Acuson Corporation Ultrasonic harmonic imaging system and method
US5601086A (en) * 1995-05-12 1997-02-11 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Beat frequency ultrasonic microsphere contrast agent detection system
US8241217B2 (en) 1995-06-29 2012-08-14 Teratech Corporation Portable ultrasound imaging data
US5964709A (en) * 1995-06-29 1999-10-12 Teratech Corporation Portable ultrasound imaging system
US5957846A (en) * 1995-06-29 1999-09-28 Teratech Corporation Portable ultrasound imaging system
US7500952B1 (en) 1995-06-29 2009-03-10 Teratech Corporation Portable ultrasound imaging system
US5590658A (en) * 1995-06-29 1997-01-07 Teratech Corporation Portable ultrasound imaging system
US5833613A (en) 1996-09-27 1998-11-10 Advanced Technology Laboratories, Inc. Ultrasonic diagnostic imaging with contrast agents
ATE285711T1 (de) * 1995-10-10 2005-01-15 Advanced Tech Lab Ultraschall-bilderzeugung zur diagnostik mittels kontrastmitteln
US5706819A (en) * 1995-10-10 1998-01-13 Advanced Technology Laboratories, Inc. Ultrasonic diagnostic imaging with harmonic contrast agents
US5577505A (en) * 1996-02-06 1996-11-26 Hewlett-Packard Company Means for increasing sensitivity in non-linear ultrasound imaging systems
DE69736549T2 (de) 1996-02-29 2007-08-23 Acuson Corp., Mountain View System, verfahren und wandler zum ausrichten mehrerer ultraschallbilder
JPH105216A (ja) * 1996-06-19 1998-01-13 Ge Yokogawa Medical Syst Ltd 超音波撮像方法および装置並びに造影剤
US5846202A (en) * 1996-07-30 1998-12-08 Acuson Corporation Ultrasound method and system for imaging
US5735281A (en) * 1996-08-09 1998-04-07 Hewlett-Packard Company Method of enhancing and prolonging the effect of ultrasound contrast agents
US5846200A (en) 1996-11-08 1998-12-08 Advanced Technology Laboratories, Inc. Ultrasonic diagnostic imaging system for analysis of left ventricular function
US7104956B1 (en) * 1996-11-08 2006-09-12 Research Corporation Technologies, Inc. Finite amplitude distortion-based inhomogeneous pulse echo ultrasonic imaging
DE19647701A1 (de) * 1996-11-08 1998-05-14 Schering Ag Vorrichtung zur Erzielung von konstanten Dichten von Kontrastmitteln in Geweben und Organen
US6030344A (en) * 1996-12-04 2000-02-29 Acuson Corporation Methods and apparatus for ultrasound image quantification
GB9701274D0 (en) 1997-01-22 1997-03-12 Andaris Ltd Ultrasound contrast imaging
US6110120A (en) 1997-04-11 2000-08-29 Acuson Corporation Gated ultrasound imaging apparatus and method
US5882306A (en) * 1997-04-11 1999-03-16 Acuson Corporation Ultrasound imaging methods and systems
US5961460A (en) * 1997-04-11 1999-10-05 Acuson Corporation Ultrasound imaging enhancement methods and systems
GB9708246D0 (en) * 1997-04-24 1997-06-18 Nycomed Imaging As Improvements in or relating to ultrasound imaging
US5833615A (en) * 1997-05-09 1998-11-10 Thomas Jefferson University Excitation enhanced ultrasound system
AU7702798A (en) 1997-05-30 1998-12-30 Alliance Pharmaceutical Corporation Methods and apparatus for monitoring and quantifying the movement of fluid
US6050944A (en) * 1997-06-17 2000-04-18 Acuson Corporation Method and apparatus for frequency control of an ultrasound system
US6193659B1 (en) 1997-07-15 2001-02-27 Acuson Corporation Medical ultrasonic diagnostic imaging method and apparatus
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
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
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
US5928151A (en) * 1997-08-22 1999-07-27 Acuson Corporation Ultrasonic system and method for harmonic imaging in three dimensions
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
US6537222B1 (en) * 1997-08-26 2003-03-25 Koninklijke Philips Electronics N.V. Methods for the detection of contrast agents in ultrasonic imaging
US5935069A (en) * 1997-10-10 1999-08-10 Acuson Corporation Ultrasound system and method for variable transmission of ultrasonic signals
US5860931A (en) * 1997-10-10 1999-01-19 Acuson Corporation Ultrasound method and system for measuring perfusion
US5897500A (en) * 1997-12-18 1999-04-27 Acuson Corporation Ultrasonic imaging system and method for displaying composite fundamental and harmonic images
GB9800813D0 (en) 1998-01-16 1998-03-11 Andaris Ltd Improved ultrasound contrast imaging method and apparatus
US6171245B1 (en) * 1998-03-12 2001-01-09 Siemens Medical Systems, Inc. Method of imaging scatterers based on acoustically stimulated changes of their acoustic properties
US6074348A (en) * 1998-03-31 2000-06-13 General Electric Company Method and apparatus for enhanced flow imaging in B-mode ultrasound
US6186949B1 (en) 1998-03-31 2001-02-13 General Electric Company Method and apparatus for three-dimensional flow imaging using coded excitation
US5980459A (en) * 1998-03-31 1999-11-09 General Electric Company Ultrasound imaging using coded excitation on transmit and selective filtering of fundamental and (sub)harmonic signals on receive
JP4142766B2 (ja) 1998-05-11 2008-09-03 株式会社東芝 超音波診断装置
US5957852A (en) * 1998-06-02 1999-09-28 Acuson Corporation Ultrasonic harmonic imaging system and method
US6004270A (en) * 1998-06-24 1999-12-21 Ecton, Inc. Ultrasound system for contrast agent imaging and quantification in echocardiography using template image for image alignment
US6056691A (en) * 1998-06-24 2000-05-02 Ecton, Inc. System for collecting ultrasound imaging data at an adjustable collection image frame rate
US5961464A (en) * 1998-09-16 1999-10-05 Hewlett-Packard Company Ultrasound contrast agent detection using spectral analysis from acoustic scan lines
US6048316A (en) * 1998-10-16 2000-04-11 Acuson Corporation Medical diagnostic ultrasonic imaging system and method for displaying composite fundamental and harmonic images
US5971928A (en) * 1998-11-02 1999-10-26 Acuson Corporation Diagnostic medical ultrasonic system and method for image subtraction
US6224556B1 (en) 1998-11-25 2001-05-01 Acuson Corporation Diagnostic medical ultrasound system and method for using a sparse array
US6174286B1 (en) 1998-11-25 2001-01-16 Acuson Corporation Medical diagnostic ultrasound method and system for element switching
US6645147B1 (en) * 1998-11-25 2003-11-11 Acuson Corporation Diagnostic medical ultrasound image and system for contrast agent imaging
US6234967B1 (en) 1998-12-18 2001-05-22 Atl Ultrasound Ultrasonic diagnostic imaging systems with power modulation for contrast and harmonic imaging
US6213946B1 (en) 1998-12-24 2001-04-10 Agilent Technologies, Inc. Methods and apparatus for speckle reduction by orthogonal pulse compounding in medical ultrasound imaging
US6213951B1 (en) 1999-02-19 2001-04-10 Acuson Corporation Medical diagnostic ultrasound method and system for contrast specific frequency imaging
JP4574790B2 (ja) * 1999-03-30 2010-11-04 東芝医用システムエンジニアリング株式会社 超音波診断装置及び超音波診断方法
US6210334B1 (en) 1999-03-31 2001-04-03 Acuson Corporation Medical diagnostic ultrasound method and apparatus for harmonic detection using doppler processing
US6132377A (en) * 1999-03-31 2000-10-17 Acuson Corporation Medical diagnostic ultrasonic imaging system and method using differential sub-band detection techniques
US6168565B1 (en) 1999-03-31 2001-01-02 Acuson Corporation Medical diagnostic ultrasound system and method for simultaneous phase correction of two frequency band signal components
US6190322B1 (en) 1999-06-29 2001-02-20 Agilent Technologies, Inc. Ultrasonic imaging system and method using linear cancellation
US6340348B1 (en) 1999-07-02 2002-01-22 Acuson Corporation Contrast agent imaging with destruction pulses in diagnostic medical ultrasound
US6685645B1 (en) 2001-10-20 2004-02-03 Zonare Medical Systems, Inc. Broad-beam imaging
US6740039B1 (en) 1999-08-20 2004-05-25 Koninklijke Philips Electronics N.V. Methods and apparatus for displaying information relating to delivery and activation of a therapeutic agent using ultrasound energy
US6527718B1 (en) 1999-08-20 2003-03-04 Brian G Connor Ultrasound system for continuous imaging and delivery of an encapsulated agent
US6468213B1 (en) 1999-09-14 2002-10-22 Ecton, Inc. Medical diagnostic ultrasound system and method
US7678048B1 (en) 1999-09-14 2010-03-16 Siemens Medical Solutions Usa, Inc. Medical diagnostic ultrasound system and method
US6497664B1 (en) 1999-09-14 2002-12-24 Ecton, Inc. Medical diagnostic ultrasound system and method
US6524244B1 (en) 1999-09-14 2003-02-25 Ecton Inc. Medical diagnostic ultrasound system and method
US6312381B1 (en) 1999-09-14 2001-11-06 Acuson Corporation Medical diagnostic ultrasound system and method
US6436039B1 (en) 1999-09-14 2002-08-20 Ecton, Inc. Medicial diagnostic ultrasound system and method
US6488625B1 (en) 1999-09-14 2002-12-03 Ecton, Inc. Medical diagnostic ultrasound system and method
US6508763B1 (en) 1999-09-14 2003-01-21 Ecton, Inc. Medical diagnostic ultrasound system and method
US6561979B1 (en) 1999-09-14 2003-05-13 Acuson Corporation Medical diagnostic ultrasound system and method
US6210333B1 (en) 1999-10-12 2001-04-03 Acuson Corporation Medical diagnostic ultrasound system and method for automated triggered intervals
JP2001212144A (ja) * 2000-01-31 2001-08-07 Toshiba Corp 超音波診断装置及び超音波画像化方法
US6224557B1 (en) 2000-02-03 2001-05-01 Agilent Technologies, Inc. Ultrasonic method using adaptive clutter filter to remove tissue wall motion
US6398735B1 (en) 2000-03-07 2002-06-04 Koninklijke Philips Electronics N.V. Detecting a relative level of an ultrasound imaging contrast agent
US6497665B1 (en) 2000-07-14 2002-12-24 Koninklijke Philips Electronics N.V. System and method for non-linear detection of ultrasonic contrast agents at a fundamental frequency
US6464643B1 (en) * 2000-10-06 2002-10-15 Koninklijke Philips Electronics N.V. Contrast imaging with motion correction
US6497666B1 (en) 2000-10-25 2002-12-24 Acuson Corporation Medical ultrasonic contrast agent imaging method and apparatus
US6547738B2 (en) 2001-05-03 2003-04-15 Ge Medical Systems Global Technology Company, Llc Methods and apparatus for using ultrasound with contrast agent
US6866631B2 (en) * 2001-05-31 2005-03-15 Zonare Medical Systems, Inc. System for phase inversion ultrasonic imaging
US6951542B2 (en) * 2002-06-26 2005-10-04 Esaote S.P.A. Method and apparatus for ultrasound imaging of a biopsy needle or the like during an ultrasound imaging examination
US6544184B1 (en) * 2001-08-28 2003-04-08 Acuson Corporation Imaging with reduced artifacts for medical diagnostic ultrasound
JP4958348B2 (ja) * 2001-09-06 2012-06-20 株式会社日立メディコ 超音波撮像装置
US6638228B1 (en) * 2002-04-26 2003-10-28 Koninklijke Philips Electronics N.V. Contrast-agent enhanced color-flow imaging
US6796944B2 (en) * 2002-05-17 2004-09-28 Ge Medical Systems Global Technology, Llc Display for subtraction imaging techniques
US7753850B2 (en) * 2003-11-07 2010-07-13 Koninklijke Philips Electronics, N.V. Method for ultrasound perfusion imaging
US7527592B2 (en) * 2003-11-21 2009-05-05 General Electric Company Ultrasound probe sub-aperture processing
US20050113698A1 (en) * 2003-11-21 2005-05-26 Kjell Kristoffersen Ultrasound probe transceiver circuitry
US7527591B2 (en) * 2003-11-21 2009-05-05 General Electric Company Ultrasound probe distributed beamformer
EP1697765B1 (de) * 2003-12-16 2012-11-21 Koninklijke Philips Electronics N.V. Diagnostische ultraschall-kontrastabbildung mit räumlicher mischung
US8043219B2 (en) * 2004-09-17 2011-10-25 Siemens Medical Solutions Usa, Inc. Automated power level for contrast agent imaging
EP1861015A1 (de) * 2005-03-11 2007-12-05 Koninklijke Philips Electronics N.V. Verfahren zur erzeugung von mikrobläschen für phasenaberrationskorrektur
JP2008245891A (ja) * 2007-03-30 2008-10-16 Ge Medical Systems Global Technology Co Llc 超音波造影撮影方法および超音波診断装置
JP2009028194A (ja) * 2007-07-26 2009-02-12 Ge Medical Systems Global Technology Co Llc 超音波撮像装置
JP2009100971A (ja) * 2007-10-24 2009-05-14 Ge Medical Systems Global Technology Co Llc 超音波撮像装置
JP5460144B2 (ja) * 2008-08-11 2014-04-02 キヤノン株式会社 超音波受信ビーム成形装置
US20100113926A1 (en) * 2008-10-31 2010-05-06 General Electric Company System and method for clutter filter processing for improved adaptive beamforming
US20100228130A1 (en) * 2009-03-09 2010-09-09 Teratech Corporation Portable ultrasound imaging system
WO2010103469A1 (en) 2009-03-12 2010-09-16 Koninklijke Philips Electronics, N.V. Sonolysis of blood clots using low power, coded excitation pulses
WO2014008405A2 (en) * 2012-07-03 2014-01-09 Doheny Eye Institute Sonolysis method
WO2014179681A1 (en) * 2013-05-03 2014-11-06 Sunnybrook Health Sciences Centre Systems and methods for super-resolution ultrasound imaging
DE102013226085B3 (de) * 2013-12-16 2015-03-26 Elmos Semiconductor Aktiengesellschaft Verfahren zur Verarbeitung eines Echosignals eines Ultraschallwandlers
US11357477B2 (en) 2018-09-07 2022-06-14 Siemens Medical Solutions Usa, Inc. Microbubble destruction for medical ultrasound imaging
CN111374709B (zh) * 2018-12-27 2021-04-20 深圳迈瑞生物医疗电子股份有限公司 一种超声血流成像方法及系统

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5897347A (ja) * 1981-12-03 1983-06-09 株式会社東芝 超音波診断装置
JPS62114539A (ja) * 1985-11-14 1987-05-26 富士通株式会社 超音波利用の流動表示装置
US5040537A (en) * 1987-11-24 1991-08-20 Hitachi, Ltd. Method and apparatus for the measurement and medical treatment using an ultrasonic wave
IL95743A (en) * 1990-09-19 1993-02-21 Univ Ramot Method of measuring blood flow
US5172343A (en) * 1991-12-06 1992-12-15 General Electric Company Aberration correction using beam data from a phased array ultrasonic scanner
US5255683A (en) * 1991-12-30 1993-10-26 Sound Science Limited Partnership Methods of and systems for examining tissue perfusion using ultrasonic contrast agents
US5302372A (en) * 1992-07-27 1994-04-12 National Science Council Method to opacify left ventricle in echocardiography

Also Published As

Publication number Publication date
EP0713680B1 (de) 2003-03-05
DE69529798T2 (de) 2004-02-12
JP3675916B2 (ja) 2005-07-27
EP0713680A2 (de) 1996-05-29
US5456257A (en) 1995-10-10
ATE233518T1 (de) 2003-03-15
JPH08229032A (ja) 1996-09-10
EP0713680A3 (de) 1998-08-12

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