JP4633131B2 - Nmrプローブ - Google Patents
Nmrプローブ Download PDFInfo
- Publication number
- JP4633131B2 JP4633131B2 JP2008057824A JP2008057824A JP4633131B2 JP 4633131 B2 JP4633131 B2 JP 4633131B2 JP 2008057824 A JP2008057824 A JP 2008057824A JP 2008057824 A JP2008057824 A JP 2008057824A JP 4633131 B2 JP4633131 B2 JP 4633131B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- nmr
- magnetic field
- circuit
- irradiation
- 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
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
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
- G01R33/34053—Solenoid coils; Toroidal coils
-
- 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
- G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
- G01R33/34069—Saddle coils
-
- 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
- G01R33/3642—Mutual coupling or decoupling of multiple coils, e.g. decoupling of a receive coil from a transmission coil, or intentional coupling of RF coils, e.g. for RF magnetic field amplification
- G01R33/365—Decoupling of multiple RF coils wherein the multiple RF coils have the same function in MR, e.g. decoupling of a receive coil from another receive coil in a receive coil array, decoupling of a transmission coil from another transmission coil in a transmission coil array
-
- 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
- G01R33/3642—Mutual coupling or decoupling of multiple coils, e.g. decoupling of a receive coil from a transmission coil, or intentional coupling of RF coils, e.g. for RF magnetic field amplification
- G01R33/3657—Decoupling of multiple RF coils wherein the multiple RF coils do not have the same function in MR, e.g. decoupling of a transmission coil from a receive coil
-
- 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
- G01R33/3664—Switching for purposes other than coil coupling or decoupling, e.g. switching between a phased array mode and a quadrature mode, switching between surface coil modes of different geometrical shapes, switching from a whole body reception coil to a local reception coil or switching for automatic coil selection in moving table MR or for changing the field-of-view
-
- 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
-
- 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
- G01R33/3628—Tuning/matching of the transmit/receive coil
- G01R33/3635—Multi-frequency operation
-
- 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
- G01R33/3642—Mutual coupling or decoupling of multiple coils, e.g. decoupling of a receive coil from a transmission coil, or intentional coupling of RF coils, e.g. for RF magnetic field amplification
Description
Claims (8)
- 高周波磁場照射用コイルおよびNMR信号受信用コイルを有するNMR用プローブであ
って、一本のワイヤーまたは一枚の箔からなるコイルの両端から第一リード線対が引き出され、該第一リード線対よりも中央寄りの前記コイルの途中から第二リード線対が引き出され、前記第一リード線対によって前記高周波磁場照射用コイルが形成され、前記第二リード線対によって前記NMR信号受信用コイルが形成されていることを特徴とするNMR用プローブ。 - 請求項1に記載のNMR用プローブにおいて、前記第二リード線対が前記コイルの巻き
線中心から等距離あるいはほぼ等距離のところに設けられていることを特徴とするNMR
用プローブ。 - 請求項1に記載のNMR用プローブにおいて、前記第一リード線対を構成する二つのリ
ード線にそれぞれ選択回路が接続され、その選択回路の後段に同調・整合回路が接続され
、前記第二リード線対を形成する二つのリード線にそれぞれ選択回路が接続され、その選
択回路の後段に同調・整合回路が接続され、前記選択回路が高周波電流の遮断回路または
通過回路を高周波磁場照射時とNMR信号受信時に合わせて切替え可能であることを特徴
とするNMR用プローブ。 - 請求項1に記載のNMR用プローブにおいて、一本のワイヤーまたは一枚の箔からなる
前記コイルの両端部に新たにコイルが追加され、その追加されたコイルの両端から第三リード線対が引き出され、この第三リード線対を構成する二つのリード線にそれぞれ選択回路が接続され、その選択回路の後段に同調・整合回路が接続されていることを特徴とするNMR用プローブ。 - 請求項1に記載のNMR用プローブにおいて、前記高周波磁場照射用コイルにおけるコ
イル両端および前記NMR信号受信用コイルにおけるコイル両端にそれぞれ同調・整合回
路が接続され、それぞれの前記同調・整合回路の後段に選択回路が接続され、前記選択回
路が高周波電流の遮断回路または通過回路を高周波磁場照射時とNMR信号受信時に合わ
せて切替え可能であることを特徴とするNMR用プローブ。 - 請求項1から5のいずれか1項に記載のNMR用プローブにおいて、前記高周波磁場照
射用コイルの照射周波数と前記NMR信号受信用コイルの受信周波数とが一致あるいはほ
ぼ一致することを特徴とするNMR用プローブ。 - 請求項1から5のいずれか1項に記載のNMR用プローブにおいて、前記高周波磁場照
射用コイルの照射周波数と前記NMR信号受信用コイルの受信周波数とが異なることを特
徴とするNMR用プローブ。 - 請求項1から5のいずれか1項に記載のNMR用プローブにおいて、一本のワイヤーま
たは一枚の箔からなる前記高周波磁場照射用コイルがソレノイドコイルまたはサドルコイルよりなることを特徴とするNMR用プローブ。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008057824A JP4633131B2 (ja) | 2008-03-07 | 2008-03-07 | Nmrプローブ |
US12/370,663 US8035386B2 (en) | 2008-03-07 | 2009-02-13 | NMR probe with magnetic field irradiating coil and NMR signal receiving coil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008057824A JP4633131B2 (ja) | 2008-03-07 | 2008-03-07 | Nmrプローブ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009216431A JP2009216431A (ja) | 2009-09-24 |
JP4633131B2 true JP4633131B2 (ja) | 2011-02-16 |
Family
ID=41052947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008057824A Expired - Fee Related JP4633131B2 (ja) | 2008-03-07 | 2008-03-07 | Nmrプローブ |
Country Status (2)
Country | Link |
---|---|
US (1) | US8035386B2 (ja) |
JP (1) | JP4633131B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110174629A (zh) * | 2018-02-21 | 2019-08-27 | 西门子医疗有限公司 | 调节磁共振设备的天线装置的场分布 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5308883B2 (ja) * | 2009-03-19 | 2013-10-09 | 株式会社日立製作所 | Nmrプローブ |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003290168A (ja) * | 2002-03-27 | 2003-10-14 | Ge Medical Systems Global Technology Co Llc | Mri用rfコイルおよびmri装置 |
JP2007051882A (ja) * | 2005-08-15 | 2007-03-01 | Jeol Ltd | Nmr装置 |
JP2007511331A (ja) * | 2003-11-19 | 2007-05-10 | ゼネラル・エレクトリック・カンパニイ | フェーズドアレイ膝部コイル |
JP2007185421A (ja) * | 2006-01-16 | 2007-07-26 | Hitachi Ltd | 磁気共鳴測定装置および方法 |
JP2007260079A (ja) * | 2006-03-28 | 2007-10-11 | Ge Medical Systems Global Technology Co Llc | 磁気共鳴撮像装置、rfコイル及び磁気共鳴撮像装置の制御方法 |
JP2007322361A (ja) * | 2006-06-05 | 2007-12-13 | Hitachi Ltd | 核磁気共鳴装置用プローブ及び核磁気共鳴装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5652253U (ja) * | 1979-09-28 | 1981-05-08 | ||
US4857849A (en) * | 1987-03-25 | 1989-08-15 | Mitsubishi Denki Kabushiki Kaisha | High frequency magnetic field generator for nuclear magnetic resonance |
US5208534A (en) * | 1989-08-09 | 1993-05-04 | Kabushiki Kaisha Toshiba | Magnetic resonance imaging system |
JPH03267044A (ja) * | 1990-03-16 | 1991-11-27 | Toshiba Corp | Mri装置 |
JPH08240651A (ja) * | 1995-03-02 | 1996-09-17 | Norin Suisansyo Nogyo Kenkyu Center Shocho | 核磁気共鳴イメージング装置および方法 |
JPH0919414A (ja) * | 1995-07-06 | 1997-01-21 | Ge Yokogawa Medical Syst Ltd | Mri装置 |
JP4787033B2 (ja) * | 2006-02-15 | 2011-10-05 | 株式会社日立製作所 | 核磁気共鳴信号用ソレノイドコイル及び核磁気共鳴信号取得装置 |
-
2008
- 2008-03-07 JP JP2008057824A patent/JP4633131B2/ja not_active Expired - Fee Related
-
2009
- 2009-02-13 US US12/370,663 patent/US8035386B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003290168A (ja) * | 2002-03-27 | 2003-10-14 | Ge Medical Systems Global Technology Co Llc | Mri用rfコイルおよびmri装置 |
JP2007511331A (ja) * | 2003-11-19 | 2007-05-10 | ゼネラル・エレクトリック・カンパニイ | フェーズドアレイ膝部コイル |
JP2007051882A (ja) * | 2005-08-15 | 2007-03-01 | Jeol Ltd | Nmr装置 |
JP2007185421A (ja) * | 2006-01-16 | 2007-07-26 | Hitachi Ltd | 磁気共鳴測定装置および方法 |
JP2007260079A (ja) * | 2006-03-28 | 2007-10-11 | Ge Medical Systems Global Technology Co Llc | 磁気共鳴撮像装置、rfコイル及び磁気共鳴撮像装置の制御方法 |
JP2007322361A (ja) * | 2006-06-05 | 2007-12-13 | Hitachi Ltd | 核磁気共鳴装置用プローブ及び核磁気共鳴装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110174629A (zh) * | 2018-02-21 | 2019-08-27 | 西门子医疗有限公司 | 调节磁共振设备的天线装置的场分布 |
CN110174629B (zh) * | 2018-02-21 | 2021-09-24 | 西门子医疗有限公司 | 调节磁共振设备的天线装置的场分布 |
Also Published As
Publication number | Publication date |
---|---|
US20090224758A1 (en) | 2009-09-10 |
JP2009216431A (ja) | 2009-09-24 |
US8035386B2 (en) | 2011-10-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2807497B1 (en) | Multi-resonant t/r antenna for mr image generation | |
US8742759B2 (en) | High-frequency coil and magnetic resonance imaging device | |
US20040155656A1 (en) | Transmission and receiving coil for mr apparatus | |
JP2008067807A5 (ja) | ||
CN105717470B (zh) | 磁共振局部线圈系统,磁共振系统及其运行方法 | |
WO2010045457A2 (en) | Coil element decoupling for mri | |
KR101113547B1 (ko) | 자기 공명 영상 장치에 이용되는 rf 코일 | |
CN110235013B (zh) | 用于利用核磁共振方法拍摄图像的偶极天线组件 | |
JP2020523097A5 (ja) | ||
WO2018130614A1 (de) | Magnetresonanztomograph und lokalspulenmatrix zum betrieb bei niedrigen magnetfeldstärken | |
JP4633131B2 (ja) | Nmrプローブ | |
JP4787033B2 (ja) | 核磁気共鳴信号用ソレノイドコイル及び核磁気共鳴信号取得装置 | |
JP7092541B2 (ja) | アレイコイル及び磁気共鳴撮像装置 | |
CN110366688A (zh) | 对用于磁共振成像的线圈进行感应性馈送 | |
JP5963490B2 (ja) | 2重同調rf共振器 | |
CN110703169A (zh) | 多通道射频线圈装置及核磁共振成像系统 | |
CN108474829B (zh) | 用于磁共振检查系统的射频线圈阵列 | |
JP7216252B2 (ja) | 複数の独立送受信チャネルを有する磁気共鳴ボリュームコイル | |
KR101682820B1 (ko) | 자기 공명 단층 촬영에 사용하기 위한 일체형 광학 케이블 가이드를 갖는 시스 전류 필터 | |
CN101190127A (zh) | 一种平板结构的射频线圈 | |
CN200994776Y (zh) | 一种平板结构的射频线圈 | |
US20160033595A1 (en) | Decoupling inductor assembly, radio frequency receiving coil and magnetic resonance imaging apparatus | |
CN108431623B (zh) | 具有紧密包装的绕组的磁场梯度线圈及其制造方法 | |
JP2011507586A (ja) | 補助的なデカップリング素子を備えたマルチチャネルtemコイル | |
CN109845033A (zh) | 具有缠绕和联接在一起的铁磁体杆的天线 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20091214 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100209 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100316 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100727 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100823 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20101102 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20101116 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131126 Year of fee payment: 3 |
|
LAPS | Cancellation because of no payment of annual fees |