CN1331439C - 一种核磁共振成像系统信号接收的方法及其装置 - Google Patents
一种核磁共振成像系统信号接收的方法及其装置 Download PDFInfo
- Publication number
- CN1331439C CN1331439C CNB2004100296717A CN200410029671A CN1331439C CN 1331439 C CN1331439 C CN 1331439C CN B2004100296717 A CNB2004100296717 A CN B2004100296717A CN 200410029671 A CN200410029671 A CN 200410029671A CN 1331439 C CN1331439 C CN 1331439C
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- CN
- China
- Prior art keywords
- receiving coil
- signal
- annular receiving
- radio frequency
- annular
- 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.)
- Expired - Fee Related
Links
- 238000013421 nuclear magnetic resonance imaging Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title abstract description 14
- 238000003384 imaging method Methods 0.000 claims abstract description 31
- 238000005481 NMR spectroscopy Methods 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims description 20
- 230000011664 signaling Effects 0.000 claims description 11
- 230000010363 phase shift Effects 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 230000005284 excitation Effects 0.000 abstract 2
- 230000006698 induction Effects 0.000 abstract 1
- 210000000629 knee joint Anatomy 0.000 description 10
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 210000003414 extremity Anatomy 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 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
- G01R33/28—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
- G01R33/3678—Electrical details, e.g. matching or coupling of the coil to the receiver involving quadrature drive or detection, e.g. a circularly polarized RF magnetic field
-
- 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
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/341—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils
- G01R33/3415—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils comprising arrays of sub-coils, i.e. phased-array coils with flexible receiver channels
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
Description
项目 | 已有技术膝天线阵列 | 反向旋转膝天线阵列 |
成像区域 | 小 | 大 |
信噪比 | 小 | 大 |
成像区域信号均匀度 | 不好 | 好 |
体积 | 不变 | 不变 |
通道数 | 1或2 | 2至4 |
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2004100296717A CN1331439C (zh) | 2004-03-31 | 2004-03-31 | 一种核磁共振成像系统信号接收的方法及其装置 |
US11/095,230 US20050225326A1 (en) | 2004-03-31 | 2005-03-31 | Signal receiving method and device for a magnetic resonance imaging system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2004100296717A CN1331439C (zh) | 2004-03-31 | 2004-03-31 | 一种核磁共振成像系统信号接收的方法及其装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1676095A CN1676095A (zh) | 2005-10-05 |
CN1331439C true CN1331439C (zh) | 2007-08-15 |
Family
ID=35048954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2004100296717A Expired - Fee Related CN1331439C (zh) | 2004-03-31 | 2004-03-31 | 一种核磁共振成像系统信号接收的方法及其装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20050225326A1 (zh) |
CN (1) | CN1331439C (zh) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5550212B2 (ja) * | 2007-03-22 | 2014-07-16 | 株式会社東芝 | Rfコイルおよびmri装置 |
DE102007036564B4 (de) * | 2007-08-03 | 2009-07-09 | Siemens Ag | Verfahren zur gewebespezifischen Optimierung von Bildgebungsparametern |
US20110012598A1 (en) * | 2007-11-30 | 2011-01-20 | Koninklijke Philips Electronics N.V. | Mr coils with an active electronic component having an indirect power connection |
US8970217B1 (en) | 2010-04-14 | 2015-03-03 | Hypres, Inc. | System and method for noise reduction in magnetic resonance imaging |
DE102010044520A1 (de) * | 2010-09-07 | 2012-03-08 | Siemens Aktiengesellschaft | Verfahren zum Abbilden eines Teilbereichs eines Untersuchungsobjekts in einer Magnetresonanzanlage |
DE102010042219B4 (de) | 2010-10-08 | 2013-08-22 | Siemens Aktiengesellschaft | Magnetresonanzsystem sowie ein Verfahren zu einem Aussenden von Hochfrequenzsignalen |
US10523276B2 (en) * | 2011-08-16 | 2019-12-31 | Qualcomm Incorporated | Wireless power receiver with multiple receiver coils |
CN109464158A (zh) * | 2018-11-30 | 2019-03-15 | 南昌与德软件技术有限公司 | 一种生理检测方法、装置、终端及存储介质 |
CN109696641A (zh) * | 2018-12-29 | 2019-04-30 | 佛山瑞加图医疗科技有限公司 | 接收线圈装置及磁共振成像系统 |
CN110007257B (zh) * | 2019-05-07 | 2021-10-12 | 上海东软医疗科技有限公司 | 磁共振发射线圈及磁共振设备 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1311444A (zh) * | 2000-02-29 | 2001-09-05 | 通用电器横河医疗系统株式会社 | 磁共振信号的接收方法和磁共振成像装置 |
US6493572B1 (en) * | 1999-09-30 | 2002-12-10 | Toshiba America Mri, Inc. | Inherently de-coupled sandwiched solenoidal array coil |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3216938B2 (ja) * | 1993-06-08 | 2001-10-09 | 株式会社日立製作所 | Mri用rfプローブ及び磁気共鳴撮影装置 |
US6411612B1 (en) * | 1998-05-19 | 2002-06-25 | Harris Communication | Selective modification of antenna directivity pattern to adaptively cancel co-channel interference in TDMA cellular communication system |
JP2000225106A (ja) * | 1998-11-30 | 2000-08-15 | Ge Yokogawa Medical Systems Ltd | 受信コイル並びに磁気共鳴撮像方法および装置 |
JP3705973B2 (ja) * | 1999-11-19 | 2005-10-12 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | Rfコイルおよび磁気共鳴撮影装置 |
US6768303B1 (en) * | 2001-03-16 | 2004-07-27 | General Electric Company | Double-counter-rotational coil |
DE10126338A1 (de) * | 2001-05-30 | 2002-12-12 | Siemens Ag | Hochfrequenz-Spulenanordnung für ein Kernspintomographie-Gerät und Kernspintomorgraphie-Gerät |
-
2004
- 2004-03-31 CN CNB2004100296717A patent/CN1331439C/zh not_active Expired - Fee Related
-
2005
- 2005-03-31 US US11/095,230 patent/US20050225326A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6493572B1 (en) * | 1999-09-30 | 2002-12-10 | Toshiba America Mri, Inc. | Inherently de-coupled sandwiched solenoidal array coil |
CN1311444A (zh) * | 2000-02-29 | 2001-09-05 | 通用电器横河医疗系统株式会社 | 磁共振信号的接收方法和磁共振成像装置 |
Also Published As
Publication number | Publication date |
---|---|
US20050225326A1 (en) | 2005-10-13 |
CN1676095A (zh) | 2005-10-05 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: SIEMENS MINDIT (SHENZHEN) MAGNETIC RESONANCE CO., Free format text: FORMER OWNER: SIEMENS (CHINA) AG Effective date: 20090605 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20090605 Address after: Two SIEMENS magnetic resonance garden, Gaoxin District, Shenzhen hi tech Zone, Guangdong Patentee after: SIEMENS Madit (Shenzhen) magnetic resonance Co., Ltd. Address before: No. 7 South Central Road, Chaoyang District, Beijing, Wangjing Patentee before: SIEMENS (China) Co., Ltd. |
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C56 | Change in the name or address of the patentee |
Owner name: SIEMENS (SHENZHEN) MAGNETIC RESONANCE LTD. Free format text: FORMER NAME: SIEMENS MINDIT (SHENZHEN) MAGNETIC RESONANCE LTD. |
|
CP01 | Change in the name or title of a patent holder |
Address after: 518057 two SIEMENS magnetic resonance garden, central high tech Zone, Guangdong, Shenzhen Patentee after: Siemens (Shenzhen) Magnetic Resonance Ltd. Address before: 518057 two SIEMENS magnetic resonance garden, central high tech Zone, Guangdong, Shenzhen Patentee before: Siemens Mindit (Shenzhen) Magnetic Resonance Ltd. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070815 Termination date: 20170331 |
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CF01 | Termination of patent right due to non-payment of annual fee |