CN104434102B - 用于测量hf激励脉冲的方法 - Google Patents
用于测量hf激励脉冲的方法 Download PDFInfo
- Publication number
- CN104434102B CN104434102B CN201410458758.XA CN201410458758A CN104434102B CN 104434102 B CN104434102 B CN 104434102B CN 201410458758 A CN201410458758 A CN 201410458758A CN 104434102 B CN104434102 B CN 104434102B
- Authority
- CN
- China
- Prior art keywords
- excitation
- data
- magnetic resonance
- pulses
- excitation pulses
- 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 49
- 230000005284 excitation Effects 0.000 claims abstract description 107
- 230000005291 magnetic effect Effects 0.000 claims abstract description 76
- 238000012544 monitoring process Methods 0.000 claims description 14
- 239000011159 matrix material Substances 0.000 claims description 8
- 230000002123 temporal effect Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 description 12
- 238000004590 computer program Methods 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 6
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 5
- 238000003384 imaging method Methods 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 230000001902 propagating effect Effects 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000008571 general function Effects 0.000 description 1
- 238000002595 magnetic resonance imaging Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
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
- G01R33/44—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
- G01R33/543—Control of the operation of the MR system, e.g. setting of acquisition parameters prior to or during MR data acquisition, dynamic shimming, use of one or more scout images for scan plane prescription
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
-
- 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
-
- 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)
- Health & Medical Sciences (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Signal Processing (AREA)
- General Health & Medical Sciences (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013218371.2 | 2013-09-13 | ||
| DE102013218371.2A DE102013218371B4 (de) | 2013-09-13 | 2013-09-13 | Verfahren zur Messung von HF-Anregungspulsen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104434102A CN104434102A (zh) | 2015-03-25 |
| CN104434102B true CN104434102B (zh) | 2017-11-03 |
Family
ID=52579844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410458758.XA Active CN104434102B (zh) | 2013-09-13 | 2014-09-10 | 用于测量hf激励脉冲的方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9864035B2 (https=) |
| JP (1) | JP2015054251A (https=) |
| KR (1) | KR20150031212A (https=) |
| CN (1) | CN104434102B (https=) |
| DE (1) | DE102013218371B4 (https=) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014204446A1 (de) * | 2014-03-11 | 2015-09-17 | Siemens Aktiengesellschaft | Verfahren zum Betrieb eines Magnetresonanztomographen und Magnetresonanztomograph |
| EP3416133A1 (en) | 2017-06-16 | 2018-12-19 | Siemens Healthcare GmbH | A method for predicting a current position of a body part, computer program product and system for predicting the current position of a body part |
| CA3285882A1 (en) * | 2023-03-13 | 2025-11-29 | Quantum Valley Investment Fund LP | Digital operation of a magnetic resonance system |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59164042A (ja) * | 1983-03-09 | 1984-09-17 | 横河電機株式会社 | Ｎｍｒ装置用送信回路 |
| JPH02239839A (ja) * | 1989-03-14 | 1990-09-21 | Hitachi Medical Corp | 磁気共鳴イメージング装置 |
| JPH07120544A (ja) * | 1993-10-25 | 1995-05-12 | Nippon Telegr & Teleph Corp <Ntt> | 磁気特性分析装置及び分析方法 |
| JPH07246194A (ja) * | 1994-03-10 | 1995-09-26 | Ge Yokogawa Medical Syst Ltd | Ｍｒ装置 |
| DE19911975C2 (de) | 1999-03-17 | 2001-03-08 | Siemens Ag | Magnetresonanz-Sendeverfahren und hiermit korrespondierende Magnetresonanz-Sendeanordnung |
| DE10254660B4 (de) * | 2002-11-22 | 2006-04-27 | Siemens Ag | Verfahren zur Korrektur des B 1- Felds bei MR-Messungen und Magnetresonanz-Messeinrichtung |
| AU2003285670A1 (en) | 2003-01-07 | 2004-07-29 | Koninklijke Philips Electronics N.V. | High-frequency system for an mr apparatus with multiple transmit channels |
| DE102007013996B4 (de) | 2007-03-23 | 2009-01-02 | Siemens Ag | Verfahren zur lokalen Manipulation eines B1-Felds, Magnetresonanzsystem und Hilfs-Spulenelement |
| JP5332016B2 (ja) * | 2009-04-27 | 2013-11-06 | 株式会社 Ｊｅｏｌ Ｒｅｓｏｎａｎｃｅ | スピン磁気共鳴装置および方法 |
| CN102834141B (zh) | 2010-03-01 | 2015-11-25 | 沙皮恩斯脑部刺激控制有限公司 | 用于确定用于脑深部刺激的设置的方法和系统 |
| DE102011080604B4 (de) | 2011-08-08 | 2013-03-28 | Siemens Aktiengesellschaft | Betriebsverfahren, Computerprogramm und Steuereinrichtung für eine Magnetresonanzanlage mit frequenzvariablen Sendepulsen und Magnetresonanzanlage |
| DE102011085033B4 (de) * | 2011-10-21 | 2013-08-08 | Siemens Aktiengesellschaft | Korrektur von Artefakten in MR-Bildern aufgrund unzureichender Anregung bei ultrakurzen Echozeiten |
| DE102012217287B4 (de) * | 2012-09-25 | 2015-11-26 | Siemens Aktiengesellschaft | Korrektur von Artefakten in Magnetresonanzbildern |
| DE102012217819B4 (de) * | 2012-09-28 | 2014-11-20 | Siemens Aktiengesellschaft | Automatische Berechnung einer maximalen Pulslänge in der Magnetresonanztechnik |
| DE102013219753B4 (de) * | 2013-09-30 | 2015-04-09 | Siemens Aktiengesellschaft | Korrektur von mittels Magnetresonanztechnik aufgenommenen Messdaten durch eine Ent-Faltung der Messdaten |
-
2013
- 2013-09-13 DE DE102013218371.2A patent/DE102013218371B4/de active Active
-
2014
- 2014-09-09 US US14/481,596 patent/US9864035B2/en not_active Expired - Fee Related
- 2014-09-10 CN CN201410458758.XA patent/CN104434102B/zh active Active
- 2014-09-11 JP JP2014185253A patent/JP2015054251A/ja active Pending
- 2014-09-12 KR KR20140121223A patent/KR20150031212A/ko not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013218371A1 (de) | 2015-03-19 |
| JP2015054251A (ja) | 2015-03-23 |
| US9864035B2 (en) | 2018-01-09 |
| DE102013218371B4 (de) | 2019-01-03 |
| US20150077108A1 (en) | 2015-03-19 |
| KR20150031212A (ko) | 2015-03-23 |
| CN104434102A (zh) | 2015-03-25 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| 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: 20220127 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 | ||
| 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 |