DE112019002932T5 - Tomographie-kartierung elektrischer eigenschaften von leitfähigkeitsänderungen - Google Patents

Tomographie-kartierung elektrischer eigenschaften von leitfähigkeitsänderungen Download PDF

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Publication number
DE112019002932T5
DE112019002932T5 DE112019002932.0T DE112019002932T DE112019002932T5 DE 112019002932 T5 DE112019002932 T5 DE 112019002932T5 DE 112019002932 T DE112019002932 T DE 112019002932T DE 112019002932 T5 DE112019002932 T5 DE 112019002932T5
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Prior art keywords
maps
phase
conductivity
magnetic resonance
interest
Prior art date
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Pending
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DE112019002932.0T
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German (de)
English (en)
Inventor
Michael Günter Helle
Ulrich Katscher
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.)
Koninklijke Philips NV
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Koninklijke Philips NV
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Filing date
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Application filed by Koninklijke Philips NV filed Critical Koninklijke Philips NV
Publication of DE112019002932T5 publication Critical patent/DE112019002932T5/de
Pending legal-status Critical Current

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    • 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
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0033—Features or image-related aspects of imaging apparatus, e.g. for MRI, optical tomography or impedance tomography apparatus; Arrangements of imaging apparatus in a room
    • A61B5/004—Features or image-related aspects of imaging apparatus, e.g. for MRI, optical tomography or impedance tomography apparatus; Arrangements of imaging apparatus in a room adapted for image acquisition of a particular organ or body part
    • A61B5/0042—Features or image-related aspects of imaging apparatus, e.g. for MRI, optical tomography or impedance tomography apparatus; Arrangements of imaging apparatus in a room adapted for image acquisition of a particular organ or body part for the brain
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0073—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence by tomography, i.e. reconstruction of 3D images from 2D projections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/24—Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/246—Spatial mapping of the RF magnetic field B1
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/561—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by reduction of the scanning time, i.e. fast acquiring systems, e.g. using echo-planar pulse sequences
    • G01R33/5615—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
    • G06N20/00—Machine learning
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/11—Region-based segmentation
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30004—Biomedical image processing
    • G06T2207/30016—Brain

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Medical Informatics (AREA)
  • General Health & Medical Sciences (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Software Systems (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Neurology (AREA)
  • Artificial Intelligence (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Evolutionary Computation (AREA)
  • Data Mining & Analysis (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
DE112019002932.0T 2018-06-11 2019-06-04 Tomographie-kartierung elektrischer eigenschaften von leitfähigkeitsänderungen Pending DE112019002932T5 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP18176929.0A EP3581090A1 (en) 2018-06-11 2018-06-11 Electrical properties tomography mapping of conductivity changes
EP18176929.0 2018-06-11
PCT/EP2019/064432 WO2019238466A1 (en) 2018-06-11 2019-06-04 Electrical properties tomography mapping of conductivity changes

Publications (1)

Publication Number Publication Date
DE112019002932T5 true DE112019002932T5 (de) 2021-04-01

Family

ID=62630943

Family Applications (1)

Application Number Title Priority Date Filing Date
DE112019002932.0T Pending DE112019002932T5 (de) 2018-06-11 2019-06-04 Tomographie-kartierung elektrischer eigenschaften von leitfähigkeitsänderungen

Country Status (6)

Country Link
US (1) US20210259569A1 (enExample)
EP (1) EP3581090A1 (enExample)
JP (1) JP7418357B2 (enExample)
CN (1) CN112292067B (enExample)
DE (1) DE112019002932T5 (enExample)
WO (1) WO2019238466A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4249934A1 (de) * 2022-03-25 2023-09-27 Siemens Healthcare GmbH Trainierte funktion zur bereitstellung von magnetfelddaten und ihre anwendung

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6397095B1 (en) * 1999-03-01 2002-05-28 The Trustees Of The University Of Pennsylvania Magnetic resonance—electrical impedance tomography
JP3635332B2 (ja) * 2003-03-20 2005-04-06 独立行政法人情報通信研究機構 頭部装着具
US7769438B2 (en) * 2004-10-15 2010-08-03 Brainlab Ag Method and device for determining the location of electrical activity of nerve cells
US9411033B2 (en) * 2005-05-11 2016-08-09 Regents Of The University Of Minnesota Methods and apparatus for imaging with magnetic induction
US8059879B2 (en) * 2005-10-12 2011-11-15 Tokyo Denki University Brain function analysis apparatus and method
US8764672B2 (en) * 2009-02-17 2014-07-01 Preston K. Manwaring System, method and device for monitoring the condition of an internal organ
JP5465089B2 (ja) * 2010-05-31 2014-04-09 キヤノン株式会社 脳機能計測用視覚刺激提示装置、機能的磁気共鳴画像装置、脳磁計、脳機能計測方法
US20120157817A1 (en) * 2010-12-21 2012-06-21 Tucker Don M Methods for using electrical impedance tomography
JP6030143B2 (ja) * 2011-10-18 2016-11-24 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Ｍｒ電気特性断層撮影
US9625553B2 (en) * 2012-12-04 2017-04-18 Samsung Electronics Co., Ltd. Method and apparatus for acquiring B1 magnetic field information
RU2015146514A (ru) * 2013-03-29 2017-05-04 Конинклейке Филипс Н.В. Визуализация с использованием переноса протонов амида (арт) и томографии на основе электрических свойств (ерт) в одном сборе данных магнитного резонанса
EP3071096A4 (en) * 2013-11-22 2017-08-09 Mc10, Inc. Conformal sensor systems for sensing and analysis of cardiac activity
US10185011B2 (en) * 2014-04-16 2019-01-22 Koninklijke Philips N.V. EPT method of electric conductivity reconstruction with enhanced stability and speed
RU2689893C2 (ru) * 2014-09-26 2019-05-29 Конинклейке Филипс Н.В. Система визуализации для одновоксельной спектроскопии
US10330757B2 (en) * 2015-01-21 2019-06-25 Koninklijke Philips N.V. MRI method for calculating derived values from B0 and B1 maps
CN107205706B (zh) * 2015-01-29 2021-03-05 皇家飞利浦有限公司 用于自动测量患者生物计量学和生理参数的相机系统
US11089970B2 (en) * 2015-06-12 2021-08-17 Koninklijke Philips N.V. Imaging fluid flow into a region of interest
EP3196666A1 (en) * 2016-01-20 2017-07-26 Universität Bern Magnetic resonance imaging method for detecting neuronal activity in a subject's brain

Also Published As

Publication number Publication date
CN112292067A (zh) 2021-01-29
US20210259569A1 (en) 2021-08-26
WO2019238466A1 (en) 2019-12-19
JP7418357B2 (ja) 2024-01-19
EP3581090A1 (en) 2019-12-18
CN112292067B (zh) 2024-08-06
JP2021527470A (ja) 2021-10-14

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