CN104101845B - 为独立控制多个线圈元件而构造的发送装置及其运行方法 - Google Patents
为独立控制多个线圈元件而构造的发送装置及其运行方法 Download PDFInfo
- Publication number
- CN104101845B CN104101845B CN201410142705.7A CN201410142705A CN104101845B CN 104101845 B CN104101845 B CN 104101845B CN 201410142705 A CN201410142705 A CN 201410142705A CN 104101845 B CN104101845 B CN 104101845B
- Authority
- CN
- China
- Prior art keywords
- phase
- receiver
- modulator
- measuring device
- coil
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005259 measurement Methods 0.000 claims abstract description 101
- 230000005540 biological transmission Effects 0.000 claims description 96
- 238000012360 testing method Methods 0.000 claims description 32
- 238000012937 correction Methods 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000002595 magnetic resonance imaging Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
- H04B17/12—Monitoring; Testing of transmitters for calibration of transmit antennas, e.g. of the amplitude or phase
-
- 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
- G01R33/3607—RF waveform generators, e.g. frequency generators, amplitude-, frequency- or phase modulators or shifters, pulse programmers, digital to analog converters for the RF signal, means for filtering or attenuating of the RF signal
-
- 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
- G01R33/5611—Parallel magnetic resonance imaging, e.g. sensitivity encoding [SENSE], simultaneous acquisition of spatial harmonics [SMASH], unaliasing by Fourier encoding of the overlaps using the temporal dimension [UNFOLD], k-t-broad-use linear acquisition speed-up technique [k-t-BLAST], k-t-SENSE
- G01R33/5612—Parallel RF transmission, i.e. RF pulse transmission using a plurality of independent transmission 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
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/48—NMR imaging systems
- G01R33/58—Calibration of imaging systems, e.g. using test probes, Phantoms; Calibration objects or fiducial markers such as active or passive RF coils surrounding an MR active material
- G01R33/583—Calibration of signal excitation or detection systems, e.g. for optimal RF excitation power or frequency
- G01R33/586—Calibration of signal excitation or detection systems, e.g. for optimal RF excitation power or frequency for optimal flip angle of RF pulses
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
Description
Claims (11)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201310206570 DE102013206570B3 (de) | 2013-04-12 | 2013-04-12 | Verfahren zum Betrieb einer zur unabhängigen Ansteuerung mehrerer Spulenelemente ausgebildeten Sendeeinrichtung einer Magnetresonanzeinrichtung und Sendeeinrichtung |
DE102013206570.1 | 2013-04-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN104101845A CN104101845A (zh) | 2014-10-15 |
CN104101845B true CN104101845B (zh) | 2017-10-10 |
Family
ID=50625875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410142705.7A Active CN104101845B (zh) | 2013-04-12 | 2014-04-10 | 为独立控制多个线圈元件而构造的发送装置及其运行方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10135549B2 (zh) |
JP (1) | JP6415081B2 (zh) |
KR (1) | KR20140123449A (zh) |
CN (1) | CN104101845B (zh) |
DE (1) | DE102013206570B3 (zh) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6410633B2 (ja) * | 2015-02-20 | 2018-10-24 | 株式会社日立製作所 | 磁気共鳴イメージング装置およびsar算出方法 |
DE102015203457A1 (de) * | 2015-02-26 | 2016-09-01 | Siemens Aktiengesellschaft | Sendevorrichtung für einen Magnetresonanztomographen |
CN107533116B (zh) | 2015-04-24 | 2021-07-06 | 皇家飞利浦有限公司 | 多通道发送/接收射频(rf)系统 |
US10101417B2 (en) | 2015-08-03 | 2018-10-16 | General Electric Company | Methods and devices for RF coils in MRI systems |
DE102016225793B3 (de) * | 2016-12-21 | 2018-02-08 | Siemens Healthcare Gmbh | Kalibrierung einer Magnetresonanzvorrichtung |
CN108627783B (zh) | 2017-03-23 | 2022-01-14 | 通用电气公司 | 射频线圈阵列及磁共振成像发射阵列 |
EP3287805B1 (de) | 2017-05-11 | 2019-06-26 | Siemens Healthcare GmbH | Sar sicherheits-vorrichtung und -verfahren zum erkennen von ent-verstimmung von mr antennenspulen. |
EP3514561A1 (en) | 2018-01-18 | 2019-07-24 | Koninklijke Philips N.V. | Multi-channel magnetic resonance imaging rf coil |
CN113805131A (zh) * | 2021-08-04 | 2021-12-17 | 上海联影医疗科技股份有限公司 | 核磁共振系统、射频发射信号校正方法、装置和医疗设备 |
CN114236451B (zh) * | 2021-11-29 | 2023-09-12 | 上海电气(集团)总公司智惠医疗装备分公司 | 一种基于磁共振谱仪的测试方法、装置及电子设备 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5522390A (en) * | 1991-11-21 | 1996-06-04 | U.S. Philips Corporation | Magnetic resonance imaging method |
CN1283209C (zh) | 2001-06-26 | 2006-11-08 | 西门子公司 | 磁共振设备及运行方法 |
US20040095139A1 (en) | 2002-11-19 | 2004-05-20 | Brown Mark Allen | Magnetic resonance spectroscopy |
DE10335144B3 (de) * | 2003-07-31 | 2005-06-16 | Siemens Ag | Sendeanordnung für eine Magnetresonanzanlage |
DE102004053777B4 (de) * | 2003-11-19 | 2010-09-02 | Siemens Ag | Verfahren zum Bestimmen eines Einstellparameters einer Hochfrequenzsendeanordnung für eine Magnetresonanzanlage |
US7701213B2 (en) | 2005-04-28 | 2010-04-20 | Koninklijke Philips Electronics N.V. | Method and circuit arrangement for operating multi-channel transmit/receive antenna devices |
JP2008539852A (ja) | 2005-05-02 | 2008-11-20 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 磁気共鳴イメージングシステムのそれぞれの信号チャネルにおける独立した運動補正 |
EP2476007A1 (en) * | 2009-09-08 | 2012-07-18 | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. | Method for optimization of a multi-channel coil |
WO2011065532A1 (ja) * | 2009-11-30 | 2011-06-03 | 株式会社 日立メディコ | 高周波コイルユニット及び磁気共鳴撮像装置 |
JP5422453B2 (ja) * | 2010-03-18 | 2014-02-19 | 株式会社東芝 | 磁気共鳴イメージング装置 |
JPWO2011148783A1 (ja) * | 2010-05-28 | 2013-07-25 | 株式会社日立メディコ | 磁気共鳴イメージング装置及び高周波磁場パルスの変調方法 |
DE102010029463B4 (de) * | 2010-05-28 | 2014-07-24 | Siemens Aktiengesellschaft | Überwachungsverfahren zu einer Überwachung und/oder einem Schutz von Bauteilen, insbesondere einer Hochfrequenzantenne einer Magnetresonanzanlage, sowie einer Überwachungsvorrichtung und einer Magnetresonanzanlage mit einer Überwachungsvorrichtung hierzu |
JP5707066B2 (ja) | 2010-07-22 | 2015-04-22 | 株式会社東芝 | 磁気共鳴イメージング装置 |
JP5925529B2 (ja) * | 2011-03-31 | 2016-05-25 | 株式会社東芝 | 磁気共鳴イメージング装置 |
WO2014050640A1 (ja) | 2012-09-25 | 2014-04-03 | 株式会社東芝 | 磁気共鳴イメージング装置および送信制御プログラム |
-
2013
- 2013-04-12 DE DE201310206570 patent/DE102013206570B3/de active Active
-
2014
- 2014-04-10 CN CN201410142705.7A patent/CN104101845B/zh active Active
- 2014-04-11 KR KR20140043758A patent/KR20140123449A/ko not_active Application Discontinuation
- 2014-04-12 US US14/251,595 patent/US10135549B2/en active Active
- 2014-04-14 JP JP2014082767A patent/JP6415081B2/ja active Active
Also Published As
Publication number | Publication date |
---|---|
US10135549B2 (en) | 2018-11-20 |
JP2014204992A (ja) | 2014-10-30 |
DE102013206570B3 (de) | 2014-05-22 |
KR20140123449A (ko) | 2014-10-22 |
US20140307764A1 (en) | 2014-10-16 |
JP6415081B2 (ja) | 2018-10-31 |
CN104101845A (zh) | 2014-10-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104101845B (zh) | 为独立控制多个线圈元件而构造的发送装置及其运行方法 | |
CN101171761B (zh) | 在多通道发送/接收天线设备中用于功率监视的方法和电路装置 | |
US8699972B2 (en) | Transmit power calibration in a communication system | |
CN103027679B (zh) | 用于控制磁共振系统的方法 | |
US7482976B2 (en) | Antenna calibration method and apparatus | |
US9360549B1 (en) | Methods and apparatus for a self-calibrated signal injection setup for in-field receive phased array calibration system | |
US9625541B2 (en) | Safety tests for systems monitoring local SAR | |
US20080258728A1 (en) | Active Decoupling of Transmitters in Mri | |
CN101166989A (zh) | 用于操作多通道发送/接收天线设备的方法和电路装置 | |
US20160344490A1 (en) | System and method for calibration and monitoring of an anechoic boundary array rf environment simulator | |
WO2011098020A1 (zh) | 驻波检测方法、驻波检测装置及基站 | |
JP2014204992A5 (zh) | ||
US10578690B2 (en) | Digital receiver coil with built-in received phase noise indicator | |
US20130033270A1 (en) | Electromagnetic interference test sytem with self-checking function and self-checking method | |
US20090174415A1 (en) | Method for Calibrating a Real-Time Load-Pull System | |
US20080238441A1 (en) | Vector Network Analyzer-Noise Figure Measurement | |
WO2016042614A1 (ja) | 部分放電信号処理装置 | |
US7902836B2 (en) | Calibration device and calibration method for adjusting a directional-coupler measuring system | |
Solbach et al. | Near-magnet power amplifier with built-in coil current sensing | |
US20080164861A1 (en) | Measuring Device, in Particular, a Vectorial Network Analyzer with Phase Regulation | |
US10794969B2 (en) | RF circuit, MRI apparatus, and method of monitoring RF pulse power | |
US7474877B2 (en) | Method for monitoring an RF power amplifier, and an RF device, a monitoring device, and an MR system corresponding thereto | |
US11269038B2 (en) | High integrated and intelligent tx front-end used in MRI system | |
JP2008151718A (ja) | 半導体試験装置 | |
CN110850345B (zh) | 操作mri装置的方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20220128 Address after: Erlangen Patentee after: Siemens Healthineers AG Address before: Munich, Germany Patentee before: SIEMENS AG |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20240902 Address after: German Phu F Haim Patentee after: Siemens Medical AG Country or region after: Germany Address before: Erlangen Patentee before: Siemens Healthineers AG Country or region before: Germany |