DE3370756D1 - Method and apparatus for imaging the interior of a structure - Google Patents

Method and apparatus for imaging the interior of a structure

Info

Publication number
DE3370756D1
DE3370756D1 DE8383300151T DE3370756T DE3370756D1 DE 3370756 D1 DE3370756 D1 DE 3370756D1 DE 8383300151 T DE8383300151 T DE 8383300151T DE 3370756 T DE3370756 T DE 3370756T DE 3370756 D1 DE3370756 D1 DE 3370756D1
Authority
DE
Germany
Prior art keywords
interior
characteristic
imaging
impedance
regions
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
Application number
DE8383300151T
Other languages
English (en)
Inventor
Alvin Wexler
Bradley Fry
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.)
Tasc Ltd
Original Assignee
Tasc Ltd
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 Tasc Ltd filed Critical Tasc Ltd
Application granted granted Critical
Publication of DE3370756D1 publication Critical patent/DE3370756D1/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/041—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0536—Impedance imaging, e.g. by tomography
DE8383300151T 1982-01-12 1983-01-12 Method and apparatus for imaging the interior of a structure Expired DE3370756D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000393977A CA1196691A (en) 1982-01-12 1982-01-12 Reconstruction system and methods for impedance imaging

Publications (1)

Publication Number Publication Date
DE3370756D1 true DE3370756D1 (en) 1987-05-14

Family

ID=4121803

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383300151T Expired DE3370756D1 (en) 1982-01-12 1983-01-12 Method and apparatus for imaging the interior of a structure

Country Status (6)

Country Link
US (1) US4539640A (de)
EP (1) EP0085490B1 (de)
JP (1) JPS58174837A (de)
AT (1) ATE26391T1 (de)
CA (1) CA1196691A (de)
DE (1) DE3370756D1 (de)

Families Citing this family (88)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE455043B (sv) * 1982-04-22 1988-06-20 Karolinska Inst Anordning for overvakning av menniskokroppens vetskebalans genom metning av kroppens impedans
GB2119520B (en) * 1982-04-30 1985-05-15 Brian Hilton Brown Tomography
GB8309927D0 (en) * 1983-04-13 1983-05-18 Smith D N Determination of internal structure of bounded objects
US4733670A (en) * 1985-10-11 1988-03-29 The Kendall Company Device for cardiac output monitoring
US4791567A (en) * 1986-09-15 1988-12-13 General Electric Company Three dimensional connectivity system employing an equivalence schema for determining connected substructures within a body
US4825875A (en) * 1987-10-23 1989-05-02 Ninan Champil A Computer localization in pressure profile
US4920490A (en) * 1988-01-28 1990-04-24 Rensselaer Polytechnic Institute Process and apparatus for distinguishing conductivities by electric current computed tomography
US4961428A (en) * 1988-05-02 1990-10-09 Northeastern University Non-invasive method and apparatus for describing the electrical activity of the surface of an interior organ
US5030956A (en) * 1989-04-25 1991-07-09 Murphy Quentin M Radar tomography
US5227797A (en) * 1989-04-25 1993-07-13 Murphy Quentin M Radar tomography
GB9013177D0 (en) * 1990-06-13 1990-08-01 Brown Brian H Real-time imaging, etc.
US5272624A (en) * 1990-10-02 1993-12-21 Rensselaer Polytechnic Institute Current patterns for impedance tomography
JPH04212698A (ja) * 1990-12-06 1992-08-04 Toshio Hanano エンジンセット付きパラグライダー
GB9113830D0 (en) * 1991-06-27 1991-08-14 Brown Brian H Applied potential tomography
US5381333A (en) * 1991-07-23 1995-01-10 Rensselaer Polytechnic Institute Current patterns for electrical impedance tomography
US5284142A (en) * 1991-12-16 1994-02-08 Rensselaer Polytechnic Institute Three-dimensional impedance imaging processes
US5390110A (en) * 1991-07-09 1995-02-14 Rensselaer Polytechnic Institute Layer stripping process for impedance imaging
US5217022A (en) * 1991-11-27 1993-06-08 Cornell Research Foundation, Inc. Electrical impedance imaging to monitor myometrial activity
GB9226376D0 (en) * 1992-12-18 1993-02-10 British Tech Group Tomography
US6678552B2 (en) * 1994-10-24 2004-01-13 Transscan Medical Ltd. Tissue characterization based on impedance images and on impedance measurements
US6560480B1 (en) 1994-10-24 2003-05-06 Transscan Medical Ltd. Localization of anomalies in tissue and guidance of invasive tools based on impedance imaging
EP0788329B1 (de) 1994-10-24 2006-12-06 Mirabel Medical Systems Ltd. Vorrichtung und vielelementwandler zur bilderzeugung mittels impedanzmessung
US5810742A (en) * 1994-10-24 1998-09-22 Transcan Research & Development Co., Ltd. Tissue characterization based on impedance images and on impedance measurements
GB9610101D0 (en) * 1996-05-15 1996-07-24 Univ Dundee Methods and apparatus for the detection of dental caries
US6122544A (en) * 1998-05-01 2000-09-19 Organ; Leslie William Electrical impedance method and apparatus for detecting and diagnosing diseases
US6411095B1 (en) * 1998-05-05 2002-06-25 The Johns Hopkins University Apparatus and method for locating an object
US6167300A (en) * 1999-03-08 2000-12-26 Tci Incorporated Electric mammograph
AUPQ113799A0 (en) * 1999-06-22 1999-07-15 University Of Queensland, The A method and device for measuring lymphoedema
US6564079B1 (en) 2000-07-27 2003-05-13 Ckm Diagnostics, Inc. Electrode array and skin attachment system for noninvasive nerve location and imaging device
US6768921B2 (en) * 2000-12-28 2004-07-27 Z-Tech (Canada) Inc. Electrical impedance method and apparatus for detecting and diagnosing diseases
US7409243B2 (en) 2001-04-04 2008-08-05 Mirabel Medical Ltd. Breast cancer detection
US20070255169A1 (en) * 2001-11-19 2007-11-01 Dune Medical Devices Ltd. Clean margin assessment tool
US7505811B2 (en) 2001-11-19 2009-03-17 Dune Medical Devices Ltd. Method and apparatus for examining tissue for predefined target cells, particularly cancerous cells, and a probe useful in such method and apparatus
WO2003046587A1 (fr) * 2001-11-28 2003-06-05 Chikayoshi Sumi Procede d'estimation de la conductivite ou de la permittivite, procede d'estimation de vecteur densite de courant et appareil mettant en oeuvre lesdits procedes
US6993384B2 (en) * 2001-12-04 2006-01-31 Advanced Bionics Corporation Apparatus and method for determining the relative position and orientation of neurostimulation leads
US7853330B2 (en) * 2001-12-04 2010-12-14 Boston Scientific Neuromodulation Corporation Apparatus and method for determining the relative position and orientation of neurostimulation leads
US8721565B2 (en) 2005-08-04 2014-05-13 Dune Medical Devices Ltd. Device for forming an effective sensor-to-tissue contact
US6813515B2 (en) * 2002-01-04 2004-11-02 Dune Medical Devices Ltd. Method and system for examining tissue according to the dielectric properties thereof
US7809425B2 (en) * 2003-07-24 2010-10-05 Dune Medical Devices Ltd. Method and apparatus for examining a substance, particularly tissue, to characterize its type
US8032211B2 (en) * 2002-01-04 2011-10-04 Dune Medical Devices Ltd. Probes, systems, and methods for examining tissue according to the dielectric properties thereof
US7720532B2 (en) * 2004-03-23 2010-05-18 Dune Medical Ltd. Clean margin assessment tool
US8019411B2 (en) * 2002-01-04 2011-09-13 Dune Medical Devices Ltd. Probes, systems, and methods for examining tissue according to the dielectric properties thereof
US8116845B2 (en) * 2005-08-04 2012-02-14 Dune Medical Devices Ltd. Tissue-characterization probe with effective sensor-to-tissue contact
AT410844B (de) * 2002-03-25 2003-08-25 Christian Stockinger Messvorrichtung und methode zur ermittlung von ungenauem anlegen von sensoren und reduzierung von messfehlern für robuste messsysteme für z.b. physiologische messgrössen
AU2003219491A1 (en) 2002-04-04 2003-10-20 Transscan Medical Ltd. Impedance measurements on breast nipples
US20040034309A1 (en) * 2002-07-12 2004-02-19 Auckland Uniservices Limited Method and system of defining a model of one or more organs
DE10315863B4 (de) * 2003-04-08 2013-03-14 Dräger Medical GmbH Elektrodengürtel
US20080076998A1 (en) * 2003-12-01 2008-03-27 Z-Tech (Canada) Inc. Breast electrode array and method of analysis for detecting and diagnosing diseases
CN1925786A (zh) * 2004-03-06 2007-03-07 卡里斯托医药有限公司 用于非侵入性地测量活体中物质的定量信息的方法和装置
US7904145B2 (en) 2004-03-23 2011-03-08 Dune Medical Devices Ltd. Clean margin assessment tool
US9750425B2 (en) * 2004-03-23 2017-09-05 Dune Medical Devices Ltd. Graphical user interfaces (GUI), methods and apparatus for data presentation
US7474918B2 (en) * 2004-03-24 2009-01-06 Noninvasive Medical Technologies, Inc. Thoracic impedance monitor and electrode array and method of use
WO2005122888A1 (en) 2004-06-18 2005-12-29 The University Of Queensland Oedema detection
CA2528303A1 (en) 2004-11-26 2006-05-26 Z-Tech (Canada) Inc. Weighted gradient method and system for diagnosing disease
EP1890596B1 (de) * 2005-03-29 2013-10-02 Dune Medical Devices Ltd. Elektromagnetische sensoren zur gewebecharakterisierung
JP5607300B2 (ja) 2005-07-01 2014-10-15 インぺディメッド リミテッド 対象上でインピーダンス測定を実行するための装置および方法
AU2006265763B2 (en) 2005-07-01 2012-08-09 Impedimed Limited Monitoring system
WO2007014417A1 (en) 2005-08-02 2007-02-08 Impedimed Limited Impedance parameter values
CA2625631C (en) 2005-10-11 2016-11-29 Impedance Cardiology Systems, Inc. Hydration status monitoring
ES2545730T3 (es) * 2006-05-30 2015-09-15 Impedimed Limited Mediciones de impedancia
US8321160B2 (en) * 2006-06-22 2012-11-27 Bryant Consultants, Inc. Remotely reconfigurable system for mapping subsurface geological anomalies
US7788049B2 (en) * 2006-06-22 2010-08-31 Bryant Consultants, Inc. Remotely reconfigurable system for mapping subsurface geological anomalies
CA2693315A1 (en) * 2006-07-27 2008-01-31 Tasc Ltd. High definition impedance imaging
WO2008064426A1 (en) * 2006-11-30 2008-06-05 Impedimed Limited Measurement apparatus
ES2725779T3 (es) 2006-12-12 2019-09-27 Dune Medical Devices Ltd Procedimiento y aparato para proporcionar una interfaz de usuario gráfica para la adquisición y presentación de datos
EP2106241B1 (de) 2007-01-15 2015-05-06 Impedimed Limited Verfahren zur Durchfürhung von Impedanzmessungen über einen Gegenstand
US8147423B2 (en) * 2007-03-01 2012-04-03 Dune Medical Devices, Ltd. Tissue-characterization system and method
CA2703361C (en) 2007-03-30 2016-06-28 Impedimed Limited Active guarding for reduction of resistive and capacitive signal loading with adjustable control of compensation level
US10307074B2 (en) * 2007-04-20 2019-06-04 Impedimed Limited Monitoring system and probe
WO2009018620A1 (en) * 2007-08-09 2009-02-12 Impedimed Limited Impedance measurement process
CA2704061C (en) 2007-11-05 2017-06-20 Impedimed Limited Impedance determination
GB2454925A (en) * 2007-11-26 2009-05-27 Alistair Mcewan Code Division Multiplexed Electrical Impedance Tomography
US20090204017A1 (en) * 2008-02-12 2009-08-13 Pandit Ashit M Uterine activity monitoring using impedance plethysmography
AU2008207672B2 (en) 2008-02-15 2013-10-31 Impedimed Limited Impedance Analysis
AU2009321478B2 (en) 2008-11-28 2014-01-23 Impedimed Limited Impedance measurement process
GB2471873B (en) 2009-07-15 2015-09-23 Wzvi Ltd Electrical impedance imaging
JP5643829B2 (ja) 2009-10-26 2014-12-17 インぺディメッド リミテッドＩｍｐｅｄｉｍｅｄ Ｌｉｍｉｔｅｄ インピーダンス測定の分析において用いるための方法及び装置
EP2501283B1 (de) 2009-11-18 2016-09-21 Impedimed Limited Signalverteilung für patientenelektrodenmessungen
US8882759B2 (en) 2009-12-18 2014-11-11 Covidien Lp Microwave ablation system with dielectric temperature probe
US8568404B2 (en) 2010-02-19 2013-10-29 Covidien Lp Bipolar electrode probe for ablation monitoring
US8054094B1 (en) 2010-06-10 2011-11-08 General Electric Company Image reconstruction based constrained maximization
US8943884B2 (en) * 2010-07-22 2015-02-03 Baker Hughes Incorporated Smart seals and other elastomer systems for health and pressure monitoring
US8508238B2 (en) 2010-08-12 2013-08-13 General Electric Company System and method for performing electrical impedance tomography
JP6276067B2 (ja) * 2014-02-27 2018-02-07 日本光電工業株式会社 電気的インピーダンス測定装置
JP5793784B1 (ja) * 2014-10-21 2015-10-14 ウネベ建設株式会社 構造物監視装置および構造物監視方法
GB201501891D0 (en) 2015-02-05 2015-03-25 The Technology Partnership Plc Method for producing an electrical impedance tomographic image of an acoustic field and a system for performing said method
GB201613314D0 (en) 2016-08-02 2016-09-14 Tech Partnership The Plc Method for producing an electrical impedance tomographic image of an acoustic field and a system for performing said method
US11701022B2 (en) 2020-01-06 2023-07-18 Fresenius Medical Care Deutschland Gmbh Method for calibrating a bioimpedance measuring device, and medical devices

Family Cites Families (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3294084A (en) * 1964-05-14 1966-12-27 Ca Nat Research Council Potential measuring and display apparatus, especially for electrocardiographic or like use
US3320418A (en) * 1964-06-01 1967-05-16 Ohio Nuclear Scanning means including a screen which blocks radiation according to the probability of its origin
US3452743A (en) * 1965-03-01 1969-07-01 Gen Electric Body impedance bridge
US3608543A (en) * 1968-10-03 1971-09-28 Univ Carnegie Mellon Physiological impedance-measuring apparatus
GB1280898A (en) * 1969-09-26 1972-07-05 George Andrew Douglas Gordon Improvements in or relating to diagnostic apparatus
US3717141A (en) * 1970-09-15 1973-02-20 L Krohn System for providing a multi-level current density diagram of a human body organ
US3750649A (en) * 1971-06-25 1973-08-07 Univ California Pulmonary impedance bridge
GB1434908A (en) * 1972-09-02 1976-05-12 Emi Ltd Scanning arrangements
US3787827A (en) * 1972-10-05 1974-01-22 Ohio Nuclear Real time data compression system
US3874368A (en) * 1973-04-19 1975-04-01 Manfred Asrican Impedance plethysmograph having blocking system
US4076985A (en) * 1973-08-18 1978-02-28 Emi Limited Computerized tomographic scanner with beam distribution control
US4103169A (en) * 1973-08-31 1978-07-25 Emi Limited Apparatus for examining bodies by means of penetrating radiation
US3908128A (en) * 1973-09-12 1975-09-23 Ohio Nuclear Improved radiation sensing device
US3835840A (en) * 1973-09-27 1974-09-17 Hope City Impedance plethysmography method and apparatus
GB1490695A (en) * 1974-10-21 1977-11-02 Emi Ltd Radiation detecting arrangements
GB1493593A (en) * 1974-01-31 1977-11-30 Emi Ltd Radiography
US4066902A (en) * 1974-03-23 1978-01-03 Emi Limited Radiography with detector compensating means
CA1050654A (en) * 1974-04-25 1979-03-13 Varian Associates Reconstruction system and method for ultrasonic imaging
US4091287A (en) * 1974-05-08 1978-05-23 Emi Limited Scanning radiology with initial scan for adjusting system so that detector means operates within its preferred range
US3996924A (en) * 1974-06-19 1976-12-14 Wheeler H Brownell Occlusive impedance phlebograph and method therefor
US3970852A (en) * 1974-07-08 1976-07-20 Ohio Nuclear, Inc. Process and apparatus for scanning sections of radiation
US4066903A (en) * 1974-07-20 1978-01-03 Emi Limited Radiology
US4097744A (en) * 1974-11-13 1978-06-27 Emi Limited Radiographic apparatus having repetitive movement of the origin of the radiation
US3971366A (en) * 1974-11-25 1976-07-27 Hiroshi Motoyama Apparatus and method for measuring the condition of the meridians and the corresponding internal organs of the living body
US3980073A (en) * 1975-02-20 1976-09-14 Neeley, Carletta M. Method and apparatus for aiding diagnostic scanning of the body of a patient
GB1551736A (en) * 1975-06-11 1979-08-30 Emi Ltd Scanning radiographic apparatus
GB1547566A (en) * 1975-07-04 1979-06-20 Emi Ltd Information display arrangements
GB1551253A (en) * 1975-07-10 1979-08-30 Emi Ltd Detection of radiation
GB1538439A (en) * 1975-07-11 1979-01-17 Emi Ltd Radiographic apparatus
GB1564116A (en) * 1975-10-02 1980-04-02 Emi Ltd Driving and positioning arrangement for radiography
GB1558188A (en) * 1975-10-18 1979-12-19 Emi Ltd Xray tube
GB1558062A (en) * 1975-10-25 1979-12-19 Emi Ltd Radiology
GB1564603A (en) * 1975-11-04 1980-04-10 Emi Ltd Radiography
GB1562198A (en) * 1975-12-02 1980-03-05 Emi Ltd Radiography
GB1562199A (en) * 1975-12-02 1980-03-05 Emi Ltd Radiography
US4088887A (en) * 1975-12-10 1978-05-09 Emi Limited Radiography method comprising determination of corrected absorption values for members of sets of mutually inclined beam paths
GB1564117A (en) * 1975-12-23 1980-04-02 Emi Ltd Radiography
GB1571800A (en) * 1976-01-15 1980-07-16 Emi Ltd Radiography
GB1572492A (en) * 1976-02-03 1980-07-30 Emi Ltd Radiography
GB1572599A (en) * 1976-02-10 1980-07-30 Emi Ltd Radiography
US4096390A (en) * 1976-02-18 1978-06-20 Emi Limited Apparatus for examining objects by means of penetrating radiation
GB1571509A (en) * 1976-03-03 1980-07-16 Emi Ltd Radiography
US4066900A (en) * 1976-03-19 1978-01-03 Emi Limited Technique for cat utilizing composite beam paths which are wider at their ends than therebetween
GB1527813A (en) * 1976-06-02 1978-10-11 Emi Ltd Cooling x-ray apparatus
US4071771A (en) * 1976-06-28 1978-01-31 Ohio-Nuclear, Inc. Shutters for X-ray scanners
US4115695A (en) * 1977-02-25 1978-09-19 General Electric Company Gantry for computed tomography
US4115696A (en) * 1977-04-18 1978-09-19 General Electric Company Computed tomography scanner
DE2813068A1 (de) * 1978-03-25 1979-10-04 Philips Patentverwaltung Verfahren und vorrichtung zur ermittlung von inneren koerperstrukturen
GB2055206B (en) * 1979-07-31 1983-11-16 Yeda Res & Dev Detection of tumors
US4300574A (en) * 1979-12-19 1981-11-17 Frank Zurn Device for measuring and indicating changes in resistance of a living body

Also Published As

Publication number Publication date
EP0085490B1 (de) 1987-04-08
JPH0215015B2 (de) 1990-04-10
US4539640A (en) 1985-09-03
CA1196691A (en) 1985-11-12
EP0085490A1 (de) 1983-08-10
ATE26391T1 (de) 1987-04-15
JPS58174837A (ja) 1983-10-13

Similar Documents

Publication Publication Date Title
DE3370756D1 (en) Method and apparatus for imaging the interior of a structure
DE3070414D1 (en) Ultrasonic imaging apparatus comprising an electronic scan system
DE3467691D1 (en) X-ray diagnostic apparatus for allowing stereoscopic visualization on x-ray images of an object under examination
DE3272522D1 (en) Apparatus for contactless testing of electrical connections
GB2052909B (en) Apparatus for diagnosing breast cancer
GB9113706D0 (en) Apparatus for testing the insulation of an electrode conductor passing through an electrode
ZA775864B (en) Methods and apparatus for the generation and transmission of seismic signals
JPS5353993A (en) Scanning tomograph tester
EP0032513A4 (de) Ultraschall-diagnoseausrüstung.
HK73685A (en) Coin examination apparatus employing an rl relaxation oscillator
EP0302228A3 (de) Sensor zur Messung der Aktivität von Ionen und dessen Verwendung
DE3361524D1 (en) Apparatus generating test signals for electronic equipment
DE3471752D1 (en) Apparatus for producing images of an object under examination
ES2051353T3 (es) Aparato conectador para cables coaxiales de alta densidad.
IT8020661A0 (it) Metodo e apparecchiatura per la formazione di immagini mediante ultrasuoni.
DE3375323D1 (en) Diagnostic apparatus using nmr
JPS57110235A (en) X-ray diagnostic apparatus
EP0005071A3 (en) Probe for electronic scanning type ultrasonic diagnostic apparatus
DE3570135D1 (en) Apparatus for producing images of an object under examination
ZA785710B (en) Inspection testing system for electrical apparatus
EP0150452A3 (en) Transmit-receive arrangement for an ultrasonic imaging apparatus
GB2107885B (en) Apparatus for electrically testing multi-core cables
JPS56156144A (en) Ultrasonic scanner apparatus for inspecting body cavity
ES505414A0 (es) Perfeccionamientos en un aparato para el tratamiento de se- nales de medicion,especialmente de senales fisiologicas
IL68973A (en) X-ray examination apparatus

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee