GB2595828B - Magnetic resonance radio frequency power amplifier device and magnetic resonance system - Google Patents

Magnetic resonance radio frequency power amplifier device and magnetic resonance system Download PDF

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Publication number
GB2595828B
GB2595828B GB2112953.1A GB202112953A GB2595828B GB 2595828 B GB2595828 B GB 2595828B GB 202112953 A GB202112953 A GB 202112953A GB 2595828 B GB2595828 B GB 2595828B
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GB
United Kingdom
Prior art keywords
magnetic resonance
radio frequency
power amplifier
frequency power
amplifier device
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.)
Active
Application number
GB2112953.1A
Other versions
GB202112953D0 (en
GB2595828A (en
Inventor
Lu Weizhao
Hou Kun
Qiu Jianfeng
Shi Liting
Zhao Huihui
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.)
Shandong First Medical University and Shandong Academy of Medical Sciences
Original Assignee
Shandong First Medical University and Shandong Academy of Medical Sciences
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.)
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Publication of GB202112953D0 publication Critical patent/GB202112953D0/en
Publication of GB2595828A publication Critical patent/GB2595828A/en
Application granted granted Critical
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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
    • G01R33/32—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
    • 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
    • G01R33/3621—NMR receivers or demodulators, e.g. preamplifiers, means for frequency modulation of the MR signal using a digital down converter, means for analog to digital conversion [ADC] or for filtering or processing of the MR signal such as bandpass filtering, resampling, decimation or interpolation
    • 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
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/5659—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the RF magnetic field, e.g. spatial inhomogeneities of the RF magnetic field

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Amplifiers (AREA)
GB2112953.1A 2019-02-12 2020-02-06 Magnetic resonance radio frequency power amplifier device and magnetic resonance system Active GB2595828B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910111648.9A CN109683115B (en) 2019-02-12 2019-02-12 Magnetic resonance radio frequency power amplifier device and magnetic resonance system
PCT/CN2020/074422 WO2020164435A1 (en) 2019-02-12 2020-02-06 Magnetic resonance radio frequency power amplifier device and magnetic resonance system

Publications (3)

Publication Number Publication Date
GB202112953D0 GB202112953D0 (en) 2021-10-27
GB2595828A GB2595828A (en) 2021-12-08
GB2595828B true GB2595828B (en) 2023-02-15

Family

ID=66195803

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2112953.1A Active GB2595828B (en) 2019-02-12 2020-02-06 Magnetic resonance radio frequency power amplifier device and magnetic resonance system

Country Status (4)

Country Link
CN (1) CN109683115B (en)
GB (1) GB2595828B (en)
WO (1) WO2020164435A1 (en)
ZA (1) ZA202106725B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109683115B (en) * 2019-02-12 2024-05-03 泰山医学院 Magnetic resonance radio frequency power amplifier device and magnetic resonance system
CN112763952B (en) * 2019-11-06 2023-08-25 西门子(深圳)磁共振有限公司 Method and apparatus for monitoring radio frequency transmit circuit of magnetic resonance imaging device
CN111324861B (en) * 2020-02-28 2022-05-03 厦门大学 Deep learning magnetic resonance spectrum reconstruction method based on matrix decomposition

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US20050036650A1 (en) * 2001-06-15 2005-02-17 John Bishop Control scheme for signal processing arrangement
CN101675354A (en) * 2007-05-04 2010-03-17 皇家飞利浦电子股份有限公司 The RF transmitter that is used for MRI with digital feedback
US8023588B1 (en) * 2008-04-08 2011-09-20 Pmc-Sierra, Inc. Adaptive predistortion of non-linear amplifiers with burst data
CN102281221A (en) * 2011-06-23 2011-12-14 中兴通讯股份有限公司 Nonlinear systematic distortion correction device and method
CN102427336A (en) * 2011-11-30 2012-04-25 上海瑞和安琦通信科技有限公司 Radio frequency power amplification system with function of adaptive digital predistortion linearization
CN102613974A (en) * 2011-01-26 2012-08-01 成都芯通科技股份有限公司 Digital nuclear magnetic resonance radio-frequency amplifier and realization method thereof
CN103378391A (en) * 2012-04-27 2013-10-30 Ge医疗系统环球技术有限公司 Balun
CN109683115A (en) * 2019-02-12 2019-04-26 泰山医学院 A kind of magnetic resonance radio frequency power amplifier apparatus and magnetic resonance system

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US6239593B1 (en) * 1998-09-21 2001-05-29 Southwest Research Institute Method and system for detecting and characterizing mechanical damage in pipelines using nonlinear harmonics techniques
CN1516493A (en) * 2003-01-10 2004-07-28 深圳市中兴通讯股份有限公司上海第二 Power amplifier linearization method and linear power amplifier device
CN100563225C (en) * 2005-05-27 2009-11-25 华为技术有限公司 Baseband digital signal is carried out the fexible unit of pre-distortion
CN101072220A (en) * 2006-05-08 2007-11-14 中兴通讯股份有限公司 Radical basis function neural network predistortion method for adaptive power amplifier
CN100511976C (en) * 2007-08-30 2009-07-08 京信通信系统（中国）有限公司 Digital pre-distorting power amplifier and implementing method thereof
CN100594669C (en) * 2008-07-18 2010-03-17 东南大学 Power amplifier predistortion method of Hammerstein model based on fuzzy neural network
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US20100323641A1 (en) * 2009-06-22 2010-12-23 Qualcomm Incorporated Method and apparatus for using pre-distortion and feedback to mitigate nonlinearity of circuits
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Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050036650A1 (en) * 2001-06-15 2005-02-17 John Bishop Control scheme for signal processing arrangement
CN101675354A (en) * 2007-05-04 2010-03-17 皇家飞利浦电子股份有限公司 The RF transmitter that is used for MRI with digital feedback
US8023588B1 (en) * 2008-04-08 2011-09-20 Pmc-Sierra, Inc. Adaptive predistortion of non-linear amplifiers with burst data
CN102613974A (en) * 2011-01-26 2012-08-01 成都芯通科技股份有限公司 Digital nuclear magnetic resonance radio-frequency amplifier and realization method thereof
CN102281221A (en) * 2011-06-23 2011-12-14 中兴通讯股份有限公司 Nonlinear systematic distortion correction device and method
CN102427336A (en) * 2011-11-30 2012-04-25 上海瑞和安琦通信科技有限公司 Radio frequency power amplification system with function of adaptive digital predistortion linearization
CN103378391A (en) * 2012-04-27 2013-10-30 Ge医疗系统环球技术有限公司 Balun
CN109683115A (en) * 2019-02-12 2019-04-26 泰山医学院 A kind of magnetic resonance radio frequency power amplifier apparatus and magnetic resonance system

Also Published As

Publication number Publication date
WO2020164435A1 (en) 2020-08-20
ZA202106725B (en) 2021-10-27
CN109683115A (en) 2019-04-26
GB202112953D0 (en) 2021-10-27
GB2595828A (en) 2021-12-08
CN109683115B (en) 2024-05-03

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