JP7219477B2 - 磁気共鳴イメージングを改善する装置 - Google Patents

磁気共鳴イメージングを改善する装置 Download PDF

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JP7219477B2
JP7219477B2 JP2019567651A JP2019567651A JP7219477B2 JP 7219477 B2 JP7219477 B2 JP 7219477B2 JP 2019567651 A JP2019567651 A JP 2019567651A JP 2019567651 A JP2019567651 A JP 2019567651A JP 7219477 B2 JP7219477 B2 JP 7219477B2
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unit cell
array
mri machine
resonant frequency
specimen
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JP2020523097A (ja
JP2020523097A5 (https=
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ヂャン シン
アンダーソン ステファン
ドゥアン グアンウー
ヂャオ シャオグアン
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Boston University
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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
    • 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
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/341—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils
    • G01R33/3415—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils comprising arrays of sub-coils, i.e. phased-array coils with flexible receiver channels
    • 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
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/343—Constructional details, e.g. resonators, specially adapted to MR of slotted-tube or loop-gap type
    • 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
    • G01R33/3628—Tuning/matching of the transmit/receive coil
    • 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
    • G01R33/3642—Mutual coupling or decoupling of multiple coils, e.g. decoupling of a receive coil from a transmission coil, or intentional coupling of RF coils, e.g. for RF magnetic field amplification
    • 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
    • G01R33/5608—Data processing and visualization specially adapted for MR, e.g. for feature analysis and pattern recognition on the basis of measured MR data, segmentation of measured MR data, edge contour detection on the basis of measured MR data, for enhancing measured MR data in terms of signal-to-noise ratio by means of noise filtering or apodization, for enhancing measured MR data in terms of resolution by means for deblurring, windowing, zero filling, or generation of gray-scaled images, colour-coded images or images displaying vectors instead of pixels

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Radiology & Medical Imaging (AREA)
  • General Health & Medical Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Medical Informatics (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Signal Processing (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Artificial Intelligence (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2019567651A 2017-06-07 2018-06-07 磁気共鳴イメージングを改善する装置 Active JP7219477B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201762516376P 2017-06-07 2017-06-07
US62/516,376 2017-06-07
PCT/US2018/036447 WO2018226946A1 (en) 2017-06-07 2018-06-07 Apparatus for improving magnetic resonance imaging

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JP2020523097A JP2020523097A (ja) 2020-08-06
JP2020523097A5 JP2020523097A5 (https=) 2021-07-26
JP7219477B2 true JP7219477B2 (ja) 2023-02-08

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US (2) US10324152B2 (https=)
EP (2) EP4734289A2 (https=)
JP (1) JP7219477B2 (https=)
KR (1) KR102569416B1 (https=)
CN (1) CN110678769B (https=)
AU (1) AU2018279078B2 (https=)
WO (1) WO2018226946A1 (https=)

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IT201900012492A1 (it) * 2019-07-22 2021-01-22 Univ Degli Studi Dellaquila Apparato per risonanza magnetica facente uso di metamateriali
US11219384B2 (en) 2019-10-08 2022-01-11 Trustees Of Boston University Nonlinear and smart metamaterials useful to change resonance frequencies
CN114910849B (zh) * 2021-02-10 2024-04-19 清华大学 一种异形曲面mri图像增强超构表面器件
CN114910851B (zh) * 2021-02-10 2024-04-26 清华大学 基于二极管的非线性响应mri图像增强超构表面器件
CN114910840B (zh) * 2021-02-10 2024-04-23 清华大学 磁场增强组件及磁场增强器件
CN114910844B (zh) * 2021-02-10 2024-04-19 清华大学 磁场增强组件及磁场增强器件
WO2022170745A1 (zh) * 2021-02-10 2022-08-18 清华大学 磁场增强组件和磁场增强器件
CN114910838B (zh) * 2021-02-10 2024-04-26 清华大学 磁场增强组件以及磁场增强器件
CN114910841B (zh) * 2021-02-10 2024-04-19 清华大学 磁场增强组件和磁场增强器件
JP2024516228A (ja) * 2021-04-29 2024-04-12 コーネル ユニヴァーシティー Ｍｒｉ用の自己同調液体金属ｒｆコイルおよびコイルアレイ
US20220373624A1 (en) * 2021-05-21 2022-11-24 Zepp, Inc. Permittivity Enhanced Magnetic Resonance Imaging (MRI) And Magnetic Resonance Spectroscopy (MRS)
WO2024254761A1 (zh) * 2023-06-13 2024-12-19 中国科学院深圳先进技术研究院 一种用于磁共振成像的射频信号接收系统
DE102023209136A1 (de) 2023-09-20 2025-03-20 Siemens Healthineers Ag Rekonfigurierbare Lokalspule, Vorrichtung zum Rekonfigurieren und Verfahren zum Betrieb

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AU2018279078A1 (en) 2019-11-21
KR102569416B1 (ko) 2023-08-22
JP2020523097A (ja) 2020-08-06
EP3635424A1 (en) 2020-04-15
US20190302209A1 (en) 2019-10-03
US10324152B2 (en) 2019-06-18
EP3635424A4 (en) 2021-03-03
CA3062191A1 (en) 2018-12-13
EP4734289A2 (en) 2026-04-29
CN110678769A (zh) 2020-01-10
KR20200015720A (ko) 2020-02-12
EP3635424B1 (en) 2026-04-29
CN110678769B (zh) 2023-05-16
US10884089B2 (en) 2021-01-05
AU2018279078B2 (en) 2023-09-28
US20180356483A1 (en) 2018-12-13
WO2018226946A1 (en) 2018-12-13

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