TWI657248B - 磁體墊片、用於產生磁體墊片之方法與系統及低場磁性共振成像系統 - Google Patents

磁體墊片、用於產生磁體墊片之方法與系統及低場磁性共振成像系統 Download PDF

Info

Publication number
TWI657248B
TWI657248B TW106109613A TW106109613A TWI657248B TW I657248 B TWI657248 B TW I657248B TW 106109613 A TW106109613 A TW 106109613A TW 106109613 A TW106109613 A TW 106109613A TW I657248 B TWI657248 B TW I657248B
Authority
TW
Taiwan
Prior art keywords
magnetic
magnetic field
permanent magnet
regions
pattern
Prior art date
Application number
TW106109613A
Other languages
English (en)
Chinese (zh)
Other versions
TW201743065A (zh
Inventor
麥可 史蒂芬 波爾
Michael Stephen Poole
山德里克 胡根
Cedric Hugon
泰勒 S 雷斯頓
Tyler S. Ralston
Original Assignee
超精細研究股份有限公司
Hyperfine Research, 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 超精細研究股份有限公司, Hyperfine Research, Inc. filed Critical 超精細研究股份有限公司
Publication of TW201743065A publication Critical patent/TW201743065A/zh
Application granted granted Critical
Publication of TWI657248B publication Critical patent/TWI657248B/zh

Links

Classifications

    • 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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/383—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using permanent magnets
    • 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
    • G01R33/243—Spatial mapping of the polarizing magnetic field
    • 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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/3802—Manufacture or installation of magnet assemblies; Additional hardware for transportation or installation of the magnet assembly or for providing mechanical support to components of the magnet assembly
    • 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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/3806—Open magnet assemblies for improved access to the sample, e.g. C-type or U-type magnets
    • 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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/381—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets
    • 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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/387—Compensation of inhomogeneities
    • G01R33/3873—Compensation of inhomogeneities using ferromagnetic bodies ; Passive shimming
    • 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]
    • G01R33/445—MR involving a non-standard magnetic field B0, e.g. of low magnitude as in the earth's magnetic field or in nanoTesla spectroscopy, comprising a polarizing magnetic field for pre-polarisation, B0 with a temporal variation of its magnitude or direction such as field cycling of B0 or rotation of the direction of B0, or spatially inhomogeneous B0 like in fringe-field MR or in stray-field imaging
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising
    • H01F13/003—Methods and devices for magnetising permanent magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0273—Magnetic circuits with PM for magnetic field generation
    • H01F7/0278—Magnetic circuits with PM for magnetic field generation for generating uniform fields, focusing, deflecting electrically charged particles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/064—Circuit arrangements for actuating electromagnets

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
TW106109613A 2016-03-22 2017-03-22 磁體墊片、用於產生磁體墊片之方法與系統及低場磁性共振成像系統 TWI657248B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201662311821P 2016-03-22 2016-03-22
US62/311,821 2016-03-22

Publications (2)

Publication Number Publication Date
TW201743065A TW201743065A (zh) 2017-12-16
TWI657248B true TWI657248B (zh) 2019-04-21

Family

ID=59896408

Family Applications (2)

Application Number Title Priority Date Filing Date
TW106109613A TWI657248B (zh) 2016-03-22 2017-03-22 磁體墊片、用於產生磁體墊片之方法與系統及低場磁性共振成像系統
TW107140607A TWI713934B (zh) 2016-03-22 2017-03-22 磁體墊片、用於產生磁體墊片之方法與系統及低場磁性共振成像系統

Family Applications After (1)

Application Number Title Priority Date Filing Date
TW107140607A TWI713934B (zh) 2016-03-22 2017-03-22 磁體墊片、用於產生磁體墊片之方法與系統及低場磁性共振成像系統

Country Status (12)

Country Link
US (8) US10613168B2 (https=)
EP (3) EP4379760B1 (https=)
JP (1) JP6927996B2 (https=)
KR (1) KR102320584B1 (https=)
CN (1) CN109073681B (https=)
AU (1) AU2017236982A1 (https=)
BR (1) BR112018069045A2 (https=)
CA (3) CA3018183C (https=)
IL (1) IL261801A (https=)
MX (1) MX2018011524A (https=)
TW (2) TWI657248B (https=)
WO (1) WO2017165513A1 (https=)

Families Citing this family (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9817093B2 (en) 2014-09-05 2017-11-14 Hyperfine Research, Inc. Low field magnetic resonance imaging methods and apparatus
US10813564B2 (en) 2014-11-11 2020-10-27 Hyperfine Research, Inc. Low field magnetic resonance methods and apparatus
CA3115673A1 (en) 2014-11-11 2016-05-19 Hyperfine Research, Inc. Pulse sequences for low field magnetic resonance
US10191021B2 (en) * 2015-02-27 2019-01-29 Deere & Company Method for estimating a temperature of a transistor
HK1251301A1 (zh) 2015-04-13 2019-01-25 Hyperfine, Inc. 磁线圈供电方法和装置
HK1252007A1 (zh) 2015-05-12 2019-05-10 Hyperfine, Inc. 射频线圈方法和装置
MX2018011524A (es) 2016-03-22 2019-07-04 Hyperfine Res Inc Métodos y aparato para adaptar campos magnéticos.
US10408898B2 (en) 2016-03-31 2019-09-10 Schlumberger Technology Corporation Optimization of magnet arrangement for nuclear magnetic resonance well logging tools
TWI667487B (zh) 2016-09-29 2019-08-01 美商超精細研究股份有限公司 射頻線圈調諧方法及裝置
US10627464B2 (en) 2016-11-22 2020-04-21 Hyperfine Research, Inc. Low-field magnetic resonance imaging methods and apparatus
US10539637B2 (en) 2016-11-22 2020-01-21 Hyperfine Research, Inc. Portable magnetic resonance imaging methods and apparatus
JP2019535424A (ja) 2016-11-22 2019-12-12 ハイパーファイン リサーチ，インコーポレイテッド 磁気共鳴画像における自動検出のためのシステムおよび方法
US10585153B2 (en) 2016-11-22 2020-03-10 Hyperfine Research, Inc. Rotatable magnet methods and apparatus for a magnetic resonance imaging system
US20180220949A1 (en) * 2017-02-08 2018-08-09 Pablo Jose Prado Apparatus and method for in-vivo fat and iron content measurement
US12127847B2 (en) * 2017-02-08 2024-10-29 Livivos Inc. Nuclear magnetic resonance systems and methods for noninvasive and in-vivo measurements using a unilateral magnet
JP6498261B1 (ja) * 2017-12-05 2019-04-10 昭和電工株式会社 磁気センサの製造方法及び磁気センサ集合体
JP7264152B2 (ja) * 2018-03-16 2023-04-25 ソニーグループ株式会社 配向装置、磁気記録媒体の製造方法及び磁気記録媒体
CN108445543B (zh) * 2018-03-16 2020-11-03 爱德森（厦门）电子有限公司 一种提高电磁检测安检门灵敏度与抗干扰能力装置
MX2020011072A (es) 2018-04-20 2020-11-06 Hyperfine Res Inc Proteccion desplegable para dispositivos portatiles de formacion de imagenes de resonancia magnetica.
MX2020012542A (es) 2018-05-21 2021-02-16 Hyperfine Res Inc Cadena de señal de bobina de radiofrecuencia para un sistema de resonancia magnética (mri) de campo bajo.
CA3098461A1 (en) 2018-05-21 2019-11-28 Hyperfine Research, Inc. B0 magnet methods and apparatus for a magnetic resonance imaging system
CN108802644B (zh) * 2018-05-24 2020-09-15 上海东软医疗科技有限公司 梯度线圈的匀场方法和装置
TW202015621A (zh) 2018-07-19 2020-05-01 美商超精細研究股份有限公司 在磁共振成像中患者定位之方法及設備
CN113795764B (zh) 2018-07-30 2025-03-25 海珀菲纳股份有限公司 用于磁共振图像重建的深度学习技术
TW202012951A (zh) 2018-07-31 2020-04-01 美商超精細研究股份有限公司 低場漫射加權成像
CN113557526B (zh) 2018-08-15 2025-11-14 海珀菲纳股份有限公司 磁共振成像方法、系统和计算机程序产品
US10782371B2 (en) * 2018-08-31 2020-09-22 X Development Llc NMR apparatus with permanent magnets, magnetic field sensors, and magnetic coils
AU2019387628A1 (en) 2018-11-29 2021-07-22 Epsitau Ltd. Lightweight asymmetric magnet arrays
US20210405137A1 (en) 2018-11-29 2021-12-30 Epsitau Ltd. Lightweight asymmetric magnet arrays with mixed-phase magnet rings
US11875937B2 (en) 2018-11-29 2024-01-16 Epsitau Ltd. Lightweight asymmetric array of magnet elements
CA3122087A1 (en) 2018-12-19 2020-06-25 Hyperfine Research, Inc. System and methods for grounding patients during magnetic resonance imaging
EP3903117B1 (en) 2018-12-28 2024-06-26 Hyperfine, Inc. Correcting for hysteresis in magnetic resonance imaging
JP7173865B2 (ja) * 2018-12-28 2022-11-16 株式会社ジャパンディスプレイ 操作支援装置
CA3132976A1 (en) 2019-03-12 2020-09-17 Christopher Thomas Mcnulty Systems and methods for magnetic resonance imaging of infants
JP2022526718A (ja) 2019-03-14 2022-05-26 ハイパーファイン，インコーポレイテッド 空間周波数データから磁気共鳴画像を生成するための深層学習技術
BR112021020493A2 (pt) 2019-04-26 2021-12-07 Hyperfine Inc Técnicas para o controle dinâmico de um sistema de imagem de ressonância magnética
JP2022531485A (ja) 2019-05-07 2022-07-06 ハイパーファイン，インコーポレイテッド 乳児の磁気共鳴画像のためのシステム、装置、及び方法
CN110165847B (zh) * 2019-06-11 2021-01-26 深圳市瑞达美磁业有限公司 不同宽度波形的径向各向异性多极实心磁体的生产方法
US11698430B2 (en) 2019-08-15 2023-07-11 Hyperfine Operations, Inc. Eddy current mitigation systems and methods
WO2021067587A1 (en) * 2019-10-02 2021-04-08 X Development Llc Magnetometry based on electron spin defects
EP4042176B1 (en) 2019-10-08 2025-04-30 Hyperfine Operations, Inc. System and methods for detecting electromagnetic interference in patients during magnetic resonance imaging
US20210124001A1 (en) 2019-10-25 2021-04-29 Hyperfine Research, Inc. Systems and methods for detecting patient motion during magnetic resonance imaging
EP4644938A3 (en) 2019-10-25 2025-12-31 Hyperfine Operations, Inc. ARTIFACT REDUCTION IN MAGNETIC RESONANCE IMAGING
KR102189812B1 (ko) * 2019-10-30 2020-12-11 연세대학교 산학협력단 공심형 고온초전도 사극자석의 능동형 자기장 보정 장치
WO2021102559A1 (en) * 2019-11-26 2021-06-03 National Research Council Of Canada Methods of manufacturing permanent magnets by additive manufacturing
WO2021108216A1 (en) 2019-11-27 2021-06-03 Hyperfine Research, Inc. Techniques for noise suppression in an environment of a magnetic resonance imaging system
CN112858974A (zh) * 2019-11-28 2021-05-28 西门子(深圳)磁共振有限公司 局部区域的匀场方法、局部线圈及磁共振成像装置
USD912822S1 (en) 2019-12-10 2021-03-09 Hyperfine Research, Inc. Frame for magnets in magnetic resonance imaging
USD932014S1 (en) 2019-12-10 2021-09-28 Hyperfine, Inc. Frame for magnets in magnetic resonance imaging
US11422213B2 (en) 2019-12-10 2022-08-23 Hyperfine Operations, Inc. Ferromagnetic frame for magnetic resonance imaging
CN115552269B (zh) 2019-12-10 2026-03-13 海珀菲纳运营有限公司 用于磁共振成像的具有非铁磁框架的永磁体装配件
US11415651B2 (en) 2019-12-10 2022-08-16 Hyperfine Operations, Inc. Low noise gradient amplification components for MR systems
CN111103561B (zh) * 2019-12-10 2021-01-05 厦门大学 一种补偿磁化率的永磁体匀场线圈的设计及制作方法
EP4073529A1 (en) 2019-12-10 2022-10-19 Hyperfine Operations, Inc. Magnetic resonance imaging magnet assembly systems and methods
CN110873855B (zh) * 2020-01-20 2020-04-21 华中科技大学 一种基于磁通压缩的脉冲磁体装置及高通量测量方法
TWI814176B (zh) 2020-12-22 2023-09-01 財團法人工業技術研究院 磁場結構
CN117930100A (zh) 2021-01-15 2024-04-26 海珀菲纳运营有限公司 磁共振成像系统
US20220229132A1 (en) 2021-01-15 2022-07-21 Hyperfine, Inc. Flexible radio frequency coil apparatus and methods for magnetic resonance imaging
CN112820531B (zh) * 2021-02-02 2022-06-24 贵州广播电视大学(贵州职业技术学院) 一种带环形槽基座与永磁体的粘接装置及方法
CN113458391A (zh) * 2021-06-30 2021-10-01 百琪达智能科技（宁波）股份有限公司 一种钕铁硼成型平行压机系统
EP4131782B1 (en) * 2021-08-04 2025-04-09 Schneider Electric Industries SAS Electrical contactless switch
WO2023049989A1 (en) * 2021-09-28 2023-04-06 Nanalysis Corp. Magnet configurations
CN114239266B (zh) * 2021-12-15 2024-09-20 中国科学院电工研究所 一种磁共振成像超导磁体的无源匀场优化方法
CN119452264A (zh) * 2022-03-16 2025-02-14 普迈有限责任公司 用于采用永久磁体的移动mri的方法和设备
CN115191787B (zh) * 2022-07-14 2023-07-11 慕思健康睡眠股份有限公司 一种磁悬浮垫及床
US20250060440A1 (en) * 2023-08-15 2025-02-20 Neuro42 Inc. Iterative shimming for low-field head-optimized mri
CN118604695A (zh) * 2024-05-31 2024-09-06 浙江工业大学 一种基于双平面线圈的集成化原子磁力仪
EP4712113A1 (en) * 2024-08-30 2026-03-18 Honeywell International Inc. Dual yoke magnetization

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1534306A (zh) * 2003-03-21 2004-10-06 GEҽҩϵͳ����Ƽ���˾ 磁场控制的填隙的方法
US6906606B2 (en) * 2003-10-10 2005-06-14 General Electric Company Magnetic materials, passive shims and magnetic resonance imaging systems
TW200624787A (en) * 2004-09-27 2006-07-16 Koninkl Philips Electronics Nv Magnetic sensor for input devices
US7148890B2 (en) * 2003-04-02 2006-12-12 Sun Microsystems, Inc. Displacement mapping by using two passes through the same rasterizer
WO2015043684A1 (en) * 2013-09-30 2015-04-02 Rheinisch-Westfälische Technische Hochschule (Rwth) Aachen Method for a targeted shaping of the magnetic field of permanent magnets
US20160069972A1 (en) * 2014-09-05 2016-03-10 Hyperfine Research, Inc. Ferromagnetic augmentation for magnetic resonance imaging

Family Cites Families (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0591542B1 (en) * 1992-03-18 2003-01-02 Sumitomo Special Metals Company Limited Magnetic field generator for mri
US6023165A (en) 1992-09-28 2000-02-08 Fonar Corporation Nuclear magnetic resonance apparatus and methods of use and facilities for incorporating the same
US5635839A (en) * 1994-11-04 1997-06-03 Picker International, Inc. High order passive shimming assembly for MRI magnets
DE19520203C1 (de) 1995-06-01 1996-11-21 Siemens Ag Verfahren zur Vermeidung von Bildabschattungen bei Kernspintomographiegeräten, die mit Multiechosequenzen betrieben werden
IT1305407B1 (it) * 1998-03-05 2001-05-04 Esaote Spa Metodo per la correzione e/o la taratura di campi magnetici inparticolare nei magneti per macchine per il rilevamento di immagini
GB9924833D0 (en) * 1999-10-20 1999-12-22 Btg Int Ltd Permanent magnet and shim design
DE10133655B4 (de) * 2001-07-11 2004-02-26 Siemens Ag Magnet-Resonanz-Tomographiegerät mit verbesserter örtlicher und zeitlicher Stabilisierung der Homogenität des magnetischen Grundfeldes
JP3619485B2 (ja) 2001-10-24 2005-02-09 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー Ｒｆコイルおよび磁気共鳴撮影装置
JP2003303413A (ja) * 2002-04-04 2003-10-24 Fuji Photo Film Co Ltd 磁気転写装置
US6984982B2 (en) * 2002-07-29 2006-01-10 Ge Medical Systems Global Technology Company Llc Method and system for shimming an MRI magnet assembly
CN1798981B (zh) * 2003-05-30 2010-06-16 皇家飞利浦电子股份有限公司 磁共振成像扫描器及制造磁共振扫描器的方法
EP1493590A1 (en) * 2003-07-03 2005-01-05 Sicpa Holding S.A. Method and means for producing a magnetically induced design in a coating containing magnetic particles
US8203341B2 (en) 2003-09-19 2012-06-19 Xbo Medical Systems Co., Ltd. Cylindrical bi-planar gradient coil for MRI
US7843196B2 (en) 2003-09-19 2010-11-30 Xbo Medical Systems Co., Ltd. Compact whole-body open magnet for magnetic resonance imaging
JP4145248B2 (ja) * 2004-01-22 2008-09-03 信越化学工業株式会社 永久磁石式磁界発生装置
US7019609B2 (en) * 2004-06-21 2006-03-28 General Electric Company Magnetic field generating device and method of shimming thereof
EP1882191A1 (en) 2005-03-16 2008-01-30 Koninklijke Philips Electronics N.V. Optical decoupling, tuning and shimming of magnetic resonance coils
CN100397093C (zh) * 2005-03-31 2008-06-25 西门子（中国）有限公司 磁共振设备的不规则被测体的匀场方法
EP1911023A2 (en) * 2005-07-21 2008-04-16 Nxp B.V. Magnetic rom information carrier
WO2007106765A2 (en) 2006-03-11 2007-09-20 Xigo Nanotools Llc Compact and portable low-field pulsed nmr dispersion analyzer
US7295012B1 (en) * 2006-04-28 2007-11-13 General Electric Company Methods and apparatus for MRI shim elements
CN101090021B (zh) * 2006-06-12 2011-08-24 西门子（中国）有限公司 永磁磁共振系统的磁场元件的温度控制方法
DE102006052076A1 (de) 2006-11-04 2008-05-08 Bruker Biospin Ag Probenhalter für NMR-Messungen mit Feldhomogenisierung im Probenvolumen durch die Grenzflächen des Probenbehälters
GB0803358D0 (en) * 2008-02-25 2008-04-02 Siemens Magnet Technology Ltd Method and apparatus for shimming a magnet
US20110175694A1 (en) 2008-06-24 2011-07-21 Fallone B Gino Magnetic assembly and method for defining a magnetic field for an imaging volume
CN102316798A (zh) 2008-12-18 2012-01-11 古鲁姆·泰克勒马林 用于磁共振成像的小型非均匀永磁场发生器
CN102414572B (zh) 2009-04-30 2015-02-18 皇家飞利浦电子股份有限公司 用于影响和/或检测磁性颗粒和用于磁共振成像的设备和方法
IT1397713B1 (it) 2010-01-22 2013-01-24 Esaote Spa Macchina per risonanza magnetica nucleare con mezzi per la correzione dell'omogeneità del campo magnetico.
DE102010002316B4 (de) 2010-02-24 2011-12-08 Bruker Biospin Gmbh Analysesystem mit Kopplung von GPC und NMR-Spektroskopie, insbesondere für die Analyse von polymerhaltigen Messproben
US8536870B2 (en) * 2010-04-21 2013-09-17 William F. B. Punchard Shim insert for high-field MRI magnets
US8604793B2 (en) * 2010-10-21 2013-12-10 General Electric Company Superconducting magnet having cold iron shimming capability
US9182465B2 (en) * 2011-03-04 2015-11-10 Siemens Aktiengesellschaft MRT gradient system with integrated main magnetic field generation
WO2012132911A1 (ja) * 2011-03-25 2012-10-04 株式会社 日立メディコ 静磁場均一度の調整方法、磁気共鳴イメージング用静磁場発生装置、磁場調整システム、プログラム
US9285441B1 (en) * 2011-06-08 2016-03-15 Abqmr, Inc. Magnetic field correction system
CN202870284U (zh) * 2012-07-26 2013-04-10 宁波鑫高益磁材有限公司 用于磁共振成像永磁体的有源匀场系统
CN103713269A (zh) * 2012-09-29 2014-04-09 西门子(深圳)磁共振有限公司 用于磁体的匀场片、匀场条以及磁体和磁共振系统
DE102012220462B4 (de) 2012-11-09 2023-12-28 Siemens Healthcare Gmbh Verfahren und Vorrichtung zur SAR Reduktion mittels B0 spezifischer HF Anregung
US10813564B2 (en) 2014-11-11 2020-10-27 Hyperfine Research, Inc. Low field magnetic resonance methods and apparatus
CA3115673A1 (en) 2014-11-11 2016-05-19 Hyperfine Research, Inc. Pulse sequences for low field magnetic resonance
HK1251301A1 (zh) 2015-04-13 2019-01-25 Hyperfine, Inc. 磁线圈供电方法和装置
HK1252007A1 (zh) 2015-05-12 2019-05-10 Hyperfine, Inc. 射频线圈方法和装置
MX2018011524A (es) 2016-03-22 2019-07-04 Hyperfine Res Inc Métodos y aparato para adaptar campos magnéticos.
TWI667487B (zh) 2016-09-29 2019-08-01 美商超精細研究股份有限公司 射頻線圈調諧方法及裝置
US10539637B2 (en) 2016-11-22 2020-01-21 Hyperfine Research, Inc. Portable magnetic resonance imaging methods and apparatus
US10627464B2 (en) 2016-11-22 2020-04-21 Hyperfine Research, Inc. Low-field magnetic resonance imaging methods and apparatus
JP2019535424A (ja) 2016-11-22 2019-12-12 ハイパーファイン リサーチ，インコーポレイテッド 磁気共鳴画像における自動検出のためのシステムおよび方法
US10585153B2 (en) 2016-11-22 2020-03-10 Hyperfine Research, Inc. Rotatable magnet methods and apparatus for a magnetic resonance imaging system
MX2020011072A (es) 2018-04-20 2020-11-06 Hyperfine Res Inc Proteccion desplegable para dispositivos portatiles de formacion de imagenes de resonancia magnetica.
CA3098461A1 (en) 2018-05-21 2019-11-28 Hyperfine Research, Inc. B0 magnet methods and apparatus for a magnetic resonance imaging system
MX2020012542A (es) 2018-05-21 2021-02-16 Hyperfine Res Inc Cadena de señal de bobina de radiofrecuencia para un sistema de resonancia magnética (mri) de campo bajo.
TW202015621A (zh) 2018-07-19 2020-05-01 美商超精細研究股份有限公司 在磁共振成像中患者定位之方法及設備
CN113795764B (zh) 2018-07-30 2025-03-25 海珀菲纳股份有限公司 用于磁共振图像重建的深度学习技术
WO2020028228A1 (en) 2018-07-31 2020-02-06 Hyperfine Research, Inc. Medical imaging device messaging service
TW202012951A (zh) 2018-07-31 2020-04-01 美商超精細研究股份有限公司 低場漫射加權成像
CN113557526B (zh) 2018-08-15 2025-11-14 海珀菲纳股份有限公司 磁共振成像方法、系统和计算机程序产品
CA3122087A1 (en) 2018-12-19 2020-06-25 Hyperfine Research, Inc. System and methods for grounding patients during magnetic resonance imaging
EP3903117B1 (en) 2018-12-28 2024-06-26 Hyperfine, Inc. Correcting for hysteresis in magnetic resonance imaging
CA3132976A1 (en) 2019-03-12 2020-09-17 Christopher Thomas Mcnulty Systems and methods for magnetic resonance imaging of infants
JP2022526718A (ja) 2019-03-14 2022-05-26 ハイパーファイン，インコーポレイテッド 空間周波数データから磁気共鳴画像を生成するための深層学習技術
BR112021020493A2 (pt) 2019-04-26 2021-12-07 Hyperfine Inc Técnicas para o controle dinâmico de um sistema de imagem de ressonância magnética
JP2022531485A (ja) 2019-05-07 2022-07-06 ハイパーファイン，インコーポレイテッド 乳児の磁気共鳴画像のためのシステム、装置、及び方法
US11698430B2 (en) 2019-08-15 2023-07-11 Hyperfine Operations, Inc. Eddy current mitigation systems and methods
USD912822S1 (en) 2019-12-10 2021-03-09 Hyperfine Research, Inc. Frame for magnets in magnetic resonance imaging
CN118076901A (zh) 2021-05-05 2024-05-24 Neuro42公司 神经介入磁共振成像设备
US12270867B2 (en) 2022-11-19 2025-04-08 Neuro42 Inc. System and method for removing electromagnetic interference from low-field magnetic resonance images

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1534306A (zh) * 2003-03-21 2004-10-06 GEҽҩϵͳ����Ƽ���˾ 磁场控制的填隙的方法
US7148890B2 (en) * 2003-04-02 2006-12-12 Sun Microsystems, Inc. Displacement mapping by using two passes through the same rasterizer
US6906606B2 (en) * 2003-10-10 2005-06-14 General Electric Company Magnetic materials, passive shims and magnetic resonance imaging systems
TW200624787A (en) * 2004-09-27 2006-07-16 Koninkl Philips Electronics Nv Magnetic sensor for input devices
WO2015043684A1 (en) * 2013-09-30 2015-04-02 Rheinisch-Westfälische Technische Hochschule (Rwth) Aachen Method for a targeted shaping of the magnetic field of permanent magnets
US20160069972A1 (en) * 2014-09-05 2016-03-10 Hyperfine Research, Inc. Ferromagnetic augmentation for magnetic resonance imaging

Also Published As

Publication number Publication date
EP3433624B1 (en) 2022-05-04
KR20190022456A (ko) 2019-03-06
EP4379760B1 (en) 2025-10-15
US10794974B2 (en) 2020-10-06
US20190011510A1 (en) 2019-01-10
US20220206093A1 (en) 2022-06-30
CA3018183C (en) 2021-08-24
JP6927996B2 (ja) 2021-09-01
CN109073681A (zh) 2018-12-21
JP2019515710A (ja) 2019-06-13
US20200150202A1 (en) 2020-05-14
US10145913B2 (en) 2018-12-04
TW201928367A (zh) 2019-07-16
BR112018069045A2 (pt) 2019-01-29
CA3123142A1 (en) 2017-09-28
US11740302B2 (en) 2023-08-29
EP4105665B1 (en) 2024-02-14
US20250298108A1 (en) 2025-09-25
TWI713934B (zh) 2020-12-21
US20230366959A1 (en) 2023-11-16
US20170276747A1 (en) 2017-09-28
CA3018183A1 (en) 2017-09-28
US20210033687A1 (en) 2021-02-04
CA3123141A1 (en) 2017-09-28
AU2017236982A1 (en) 2018-10-04
US10613168B2 (en) 2020-04-07
EP4379760A2 (en) 2024-06-05
EP3433624A4 (en) 2019-11-27
IL261801A (en) 2018-10-31
US20170276749A1 (en) 2017-09-28
EP4379760A3 (en) 2024-06-19
KR102320584B1 (ko) 2021-11-04
EP3433624A1 (en) 2019-01-30
EP4379760C0 (en) 2025-10-15
EP4105665C0 (en) 2024-02-14
CN109073681B (zh) 2020-10-23
US12169230B2 (en) 2024-12-17
TW201743065A (zh) 2017-12-16
US11294006B2 (en) 2022-04-05
MX2018011524A (es) 2019-07-04
WO2017165513A1 (en) 2017-09-28
US10788550B2 (en) 2020-09-29
EP4105665A1 (en) 2022-12-21
EP3433624B8 (en) 2022-06-15

Similar Documents

Publication Publication Date Title
TWI657248B (zh) 磁體墊片、用於產生磁體墊片之方法與系統及低場磁性共振成像系統
US20240142556A1 (en) Correcting for hysteresis in magnetic resonance imaging
Noguchi et al. A simple screening current simulation method using equivalent circuit model for REBCO pancake coils
Tang et al. Skin and proximity effects in the conductors of split gradient coils for a hybrid Linac-MRI scanner
HK40002294B (en) Methods and apparatus for magnetic field shimming
HK40002294A (en) Methods and apparatus for magnetic field shimming

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees