KR20150031212A - Rf 여기 펄스의 측정 방법 - Google Patents
Rf 여기 펄스의 측정 방법 Download PDFInfo
- Publication number
- KR20150031212A KR20150031212A KR20140121223A KR20140121223A KR20150031212A KR 20150031212 A KR20150031212 A KR 20150031212A KR 20140121223 A KR20140121223 A KR 20140121223A KR 20140121223 A KR20140121223 A KR 20140121223A KR 20150031212 A KR20150031212 A KR 20150031212A
- Authority
- KR
- South Korea
- Prior art keywords
- magnetic resonance
- excitation
- data
- resonance device
- radio frequency
- 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.)
- Withdrawn
Links
- 230000005284 excitation Effects 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000005259 measurement Methods 0.000 title claims description 15
- 230000005291 magnetic effect Effects 0.000 claims abstract description 82
- 230000008569 process Effects 0.000 claims abstract description 6
- 238000012544 monitoring process Methods 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 11
- 239000011159 matrix material Substances 0.000 claims description 9
- 230000002123 temporal effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 8
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 238000012790 confirmation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013481 data capture Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002595 magnetic resonance imaging Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
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 (1)
| Publication Number | Publication Date |
|---|---|
| KR20150031212A true KR20150031212A (ko) | 2015-03-23 |
Family
ID=52579844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR20140121223A Withdrawn KR20150031212A (ko) | 2013-09-13 | 2014-09-12 | Rf 여기 펄스의 측정 방법 |
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 |
| CN104434102B (zh) | 2017-11-03 |
| US20150077108A1 (en) | 2015-03-19 |
| CN104434102A (zh) | 2015-03-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 20140912 |
|
| PG1501 | Laying open of application | ||
| PC1203 | Withdrawal of no request for examination | ||
| WITN | Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid |