CN112955766B - 用于生成用于mri系统的rf脉冲的mri系统和方法 - Google Patents

用于生成用于mri系统的rf脉冲的mri系统和方法 Download PDF

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Publication number
CN112955766B
CN112955766B CN201980070107.4A CN201980070107A CN112955766B CN 112955766 B CN112955766 B CN 112955766B CN 201980070107 A CN201980070107 A CN 201980070107A CN 112955766 B CN112955766 B CN 112955766B
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capacitor bank
current
amplifier
power supply
pulses
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CN201980070107.4A
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Chinese (zh)
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CN112955766A (zh
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J·西蒙斯
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Koninklijke Philips NV
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Koninklijke Philips NV
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    • 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
    • G01R33/3614—RF power amplifiers

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
CN201980070107.4A 2018-10-23 2019-10-21 用于生成用于mri系统的rf脉冲的mri系统和方法 Active CN112955766B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP18202021.4A EP3644084A1 (en) 2018-10-23 2018-10-23 Generation of rf pulses for mri applications
EP18202021.4 2018-10-23
PCT/EP2019/078480 WO2020083802A1 (en) 2018-10-23 2019-10-21 Generation of rf pulses for mri applications

Publications (2)

Publication Number Publication Date
CN112955766A CN112955766A (zh) 2021-06-11
CN112955766B true CN112955766B (zh) 2025-03-11

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US (1) US11550008B2 (https=)
EP (2) EP3644084A1 (https=)
JP (1) JP7337920B2 (https=)
CN (1) CN112955766B (https=)
WO (1) WO2020083802A1 (https=)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115395604B (zh) * 2022-08-24 2025-10-21 北京万东医疗科技股份有限公司 一种电容充电控制方法、射频放大器及磁共振设备
US20240141779A1 (en) * 2022-10-28 2024-05-02 Aps Technology, Llc Rotary pulser with regenerative control

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JPH04129532A (ja) * 1990-09-19 1992-04-30 Toshiba Corp 傾斜磁場アンプ装置
JP2716105B2 (ja) * 1991-06-24 1998-02-18 株式会社日立製作所 交番定電流回路
US5451878A (en) * 1994-07-15 1995-09-19 General Electric Company Non-resonant gradient field accelerator
GB9616499D0 (en) * 1996-08-06 1996-09-25 Oxford Instr Uk Ltd Magnetic field pulse generator
US7880330B2 (en) * 2004-06-18 2011-02-01 Bose Corporation Controlling a power converter
US7382128B2 (en) * 2006-02-24 2008-06-03 Kenergy, Inc. Magnetic resonance imaging system with a Class-E radio frequency amplifier
EP2352199B1 (en) * 2008-11-21 2015-08-26 Honda Motor Co., Ltd. Charge control device
WO2012114217A1 (en) * 2011-02-22 2012-08-30 Koninklijke Philips Electronics N.V. Mri rf power amplifier with modulated power supply
CN103547937B (zh) * 2011-05-23 2016-09-21 皇家飞利浦有限公司 作为用于mri rf 线圈的失谐电路的fet 开关
EP2729824B1 (en) * 2011-07-04 2021-05-12 Koninklijke Philips N.V. Magnetic resonance imaging system with a multi-channel impedance matching network
KR101343037B1 (ko) * 2011-11-10 2013-12-18 삼성전자 주식회사 자기 공명 영상용 무선 고주파 코일, 그 코일의 전원 제어 방법 및 그 코일을 이용한 자기 공명 영상 장치
US9897672B2 (en) 2012-04-16 2018-02-20 Koninklijke Philips Electronics N.V. MRI gradient power system with add on energy buffer
WO2014038422A1 (ja) * 2012-09-10 2014-03-13 株式会社東芝 磁気共鳴イメージング装置、及び、磁気共鳴イメージング装置の電力制御方法
JP6373679B2 (ja) * 2014-07-28 2018-08-15 キヤノンメディカルシステムズ株式会社 Ｒｆコイル保管装置
US10564238B2 (en) * 2014-12-17 2020-02-18 General Electric Company Systems and methods for energizing magnets of magnetic resonance imaging (MRI) systems
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JP6611589B2 (ja) 2015-12-17 2019-11-27 キヤノンメディカルシステムズ株式会社 磁気共鳴イメージング装置
JP6688638B2 (ja) 2016-03-10 2020-04-28 キヤノンメディカルシステムズ株式会社 磁気共鳴イメージング装置
CN107260327B (zh) 2016-03-31 2021-01-05 通用电气公司 用于操控医疗成像装置的峰值功率要求的系统和方法

Also Published As

Publication number Publication date
CN112955766A (zh) 2021-06-11
US20210382125A1 (en) 2021-12-09
EP3870988A1 (en) 2021-09-01
JP7337920B2 (ja) 2023-09-04
EP3644084A1 (en) 2020-04-29
JP2022505429A (ja) 2022-01-14
US11550008B2 (en) 2023-01-10
EP3870988B1 (en) 2025-04-16
WO2020083802A1 (en) 2020-04-30

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