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
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- 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.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims abstract description 99
- 238000005259 measurement Methods 0.000 claims abstract description 95
- 238000012360 testing method Methods 0.000 claims description 36
- 238000012937 correction Methods 0.000 claims description 12
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 1
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000002595 magnetic resonance imaging Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 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
- 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
- 230000001960 triggered effect Effects 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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013206570.1 | 2013-04-12 | ||
| DE201310206570 DE102013206570B3 (de) | 2013-04-12 | 2013-04-12 | Verfahren zum Betrieb einer zur unabhängigen Ansteuerung mehrerer Spulenelemente ausgebildeten Sendeeinrichtung einer Magnetresonanzeinrichtung und Sendeeinrichtung |
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 (enExample) |
| JP (1) | JP6415081B2 (enExample) |
| KR (1) | KR20140123449A (enExample) |
| CN (1) | CN104101845B (enExample) |
| DE (1) | DE102013206570B3 (enExample) |
Families Citing this family (12)
| 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 |
| WO2016170177A1 (en) | 2015-04-24 | 2016-10-27 | Koninklijke Philips N.V. | A multi-channel transmit/receive radio frequency (rf) system |
| 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 |
| US11381328B2 (en) * | 2019-09-24 | 2022-07-05 | Cypress Semiconductor Corporation | Detection of variation in load impedance of wireless communications devices |
| CN113805131B (zh) * | 2021-08-04 | 2025-01-24 | 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 |
| US20230396285A1 (en) | 2022-06-01 | 2023-12-07 | Apple Inc. | Electronic Device with Couplers for Power Wave Detection in Multiple Reference Planes |
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 |
| US7123010B2 (en) | 2001-06-26 | 2006-10-17 | Siemens Aktiengesellschaft | Magnetic resonance apparatus and operation method for hyperthermic treatment |
| 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 |
| JP5213698B2 (ja) | 2005-04-28 | 2013-06-19 | 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 | マルチチャネル送信／受信アンテナ装置を動作させる方法及び回路構成 |
| RU2007144585A (ru) | 2005-05-02 | 2009-06-10 | Конинклейке Филипс Электроникс Н.В. (Nl) | Независимая коррекция влияния движения в соответствующих сигнальных каналах системы для получения магнитно-резонансных изображений |
| US9024636B2 (en) * | 2009-09-08 | 2015-05-05 | Max-Planck-Gesellschaft Zur Foerderung Der Wissenschaften E.V. | Method for optimization of a multi-channel coil |
| JP5225472B2 (ja) * | 2009-11-30 | 2013-07-03 | 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 |
| US20130069650A1 (en) * | 2010-05-28 | 2013-03-21 | Hitachi Medical Corporation | Magnetic resonance imaging apparatus and high-frequency magnetic field pulse modulation method |
| 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 |
| CN103841887B (zh) | 2012-09-25 | 2016-06-08 | 株式会社东芝 | 磁共振成像装置以及发送控制程序 |
-
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 Ceased
- 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 |
|---|---|
| JP6415081B2 (ja) | 2018-10-31 |
| US20140307764A1 (en) | 2014-10-16 |
| DE102013206570B3 (de) | 2014-05-22 |
| CN104101845A (zh) | 2014-10-15 |
| KR20140123449A (ko) | 2014-10-22 |
| US10135549B2 (en) | 2018-11-20 |
| JP2014204992A (ja) | 2014-10-30 |
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| GR01 | Patent grant | ||
| 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 |
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| 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 |
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