BR112015009531A2 - dispositivo de antena de radiofrequência, sistema de imageamento por ressonância magnética, método para aplicar um campo de radiofrequência a um espaço de exame de um sistema de imageamento por ressonância magnética e pacote de software para melhorar um sistema de imageamento por ressonância magnética - Google Patents
dispositivo de antena de radiofrequência, sistema de imageamento por ressonância magnética, método para aplicar um campo de radiofrequência a um espaço de exame de um sistema de imageamento por ressonância magnética e pacote de software para melhorar um sistema de imageamento por ressonância magnéticaInfo
- Publication number
- BR112015009531A2 BR112015009531A2 BR112015009531A BR112015009531A BR112015009531A2 BR 112015009531 A2 BR112015009531 A2 BR 112015009531A2 BR 112015009531 A BR112015009531 A BR 112015009531A BR 112015009531 A BR112015009531 A BR 112015009531A BR 112015009531 A2 BR112015009531 A2 BR 112015009531A2
- Authority
- BR
- Brazil
- Prior art keywords
- magnetic resonance
- resonance imaging
- imaging system
- radio frequency
- antenna device
- Prior art date
Links
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
- G01R33/34076—Birdcage 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
-
- 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
- G01R33/34092—RF coils specially adapted for NMR spectrometers
-
- 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
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/345—Constructional details, e.g. resonators, specially adapted to MR of waveguide type
- G01R33/3453—Transverse electromagnetic [TEM] 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
- G01R33/44—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
- G01R33/54—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)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- High Energy & Nuclear Physics (AREA)
- Electromagnetism (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
resumo dispositivo de antena de radiofrequência, sistema de imageamento por ressonância magnética, método para aplicar um campo de radiofrequência a um espaço de exame de um sistema de imageamento por ressonância magnética e pacote de software para melhorar um sistema de imageamento por ressonância magnética a presente invenção refere-se a um dispositivo de antena de radiofrequência (rf) (140) para aplicar um campo de rf a um espaço de exame (116) de um sistema de imageamento por ressonância magnética (rm) (110), sendo que o dispositivo de antena de rf (140) é fornecido com um corpo tubular, o dispositivo de antena de rf (140) é segmentado em sua direção longitudinal (154), e cada segmento (162, 164) é dotado de pelo menos uma porta de ativação. o resultado é que cada modo, correspondente a uma porta de ativação, pode ser controlado individualmente. consequentemente, a não homogeneidade do indivíduo em questão nessa direção, isto é, na direção longitudinal do dispositivo de antena de rf, pode ser diretamente processada. existem formas diferentes para construir um dispositivo de antena de rf segmentado em z. 1/1
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201261721294P | 2012-11-01 | 2012-11-01 | |
PCT/IB2013/059567 WO2014068447A1 (en) | 2012-11-01 | 2013-10-23 | Z-segmented radio frequency antenna device for magnetic resonance imaging |
Publications (1)
Publication Number | Publication Date |
---|---|
BR112015009531A2 true BR112015009531A2 (pt) | 2017-07-04 |
Family
ID=49998607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112015009531A BR112015009531A2 (pt) | 2012-11-01 | 2013-10-23 | dispositivo de antena de radiofrequência, sistema de imageamento por ressonância magnética, método para aplicar um campo de radiofrequência a um espaço de exame de um sistema de imageamento por ressonância magnética e pacote de software para melhorar um sistema de imageamento por ressonância magnética |
Country Status (7)
Country | Link |
---|---|
US (1) | US10060994B2 (pt) |
EP (1) | EP2914971A1 (pt) |
JP (1) | JP6402112B2 (pt) |
CN (1) | CN104769451B (pt) |
BR (1) | BR112015009531A2 (pt) |
RU (1) | RU2015120519A (pt) |
WO (1) | WO2014068447A1 (pt) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2661639B1 (en) * | 2011-01-06 | 2020-07-08 | Koninklijke Philips N.V. | Multi-channel transmit mr imaging |
DE102012215255B3 (de) * | 2012-08-28 | 2014-02-27 | Siemens Aktiengesellschaft | Ansteuerung eines Magnetresonanzsystems unter Berücksichtigung aktueller komponentenbedingter B1-Feld-Maximalwerte |
WO2015056494A1 (ja) * | 2013-10-17 | 2015-04-23 | 株式会社 日立メディコ | 磁気共鳴イメージング装置、アンテナ装置およびその製造方法 |
CN107407716A (zh) * | 2014-10-17 | 2017-11-28 | 皇家飞利浦有限公司 | 具有间隙和rf屏元件的z分段rf线圈 |
JP6901483B2 (ja) * | 2015-12-08 | 2021-07-14 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 磁気共鳴検査システム用の無線周波数コイルアレイ |
CN105301533A (zh) * | 2015-12-08 | 2016-02-03 | 上海辰光医疗科技股份有限公司 | 一种用于磁共振成像的老鼠实验射频线圈装置 |
DE102016221161A1 (de) * | 2016-10-27 | 2018-05-03 | Bruker Biospin Ag | HF-Resonator-Anordnung |
EP3382410A1 (en) * | 2017-03-30 | 2018-10-03 | Koninklijke Philips N.V. | Mri system with optimized rf transmit and receive capabilities |
EP3470864A1 (en) * | 2017-10-12 | 2019-04-17 | Koninklijke Philips N.V. | Feeding a coil for magnetic resonance imaging |
CN112448147B (zh) * | 2019-08-29 | 2022-12-27 | 上海诺基亚贝尔股份有限公司 | 一种环贴片天线 |
CN111665463B (zh) * | 2020-06-15 | 2023-03-03 | 湖南迈太科医疗科技有限公司 | 同轴偶极子天线、信号收发装置及磁共振成像*** |
CN114089239A (zh) * | 2021-11-19 | 2022-02-25 | 深圳市联影高端医疗装备创新研究院 | 收发一体线圈以及磁共振成像*** |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3171881B2 (ja) * | 1991-07-31 | 2001-06-04 | 株式会社東芝 | 磁気共鳴映像装置用高周波プローブおよび磁気共鳴映像装置 |
DE10124465A1 (de) * | 2001-05-19 | 2002-11-21 | Philips Corp Intellectual Pty | Sende- und Empfangsspule für MR-Gerät |
WO2005050237A1 (en) | 2003-11-18 | 2005-06-02 | Koninklijke Philips Electronics, N.V. | Hybrid tem/birdcage coil for mri |
US7382128B2 (en) | 2006-02-24 | 2008-06-03 | Kenergy, Inc. | Magnetic resonance imaging system with a Class-E radio frequency amplifier |
EP1991888A4 (en) * | 2006-03-09 | 2010-01-20 | Insight Neuroimaging Systems L | MICROSTRUCTURE COIL FOR MRI DEVICES |
DE102006018158A1 (de) * | 2006-04-19 | 2007-10-25 | Siemens Ag | Zylindrische Magnetresonanzantenne |
US20080157770A1 (en) | 2006-12-28 | 2008-07-03 | Rf Sensors, Llc | Dual-tuned tem/birdcage hybrid volume coil for human brain and spectroscopy |
US7397243B1 (en) * | 2007-02-23 | 2008-07-08 | Kenergy, Inc. | Magnetic resonance imaging system with a class-E radio frequency amplifier having a feedback circuit |
EP2147325A1 (en) * | 2007-05-04 | 2010-01-27 | Koninklijke Philips Electronics N.V. | Method and rf transmitter arrangement for generating rf fields |
US8035384B2 (en) | 2008-10-23 | 2011-10-11 | General Electric Company | Hybrid birdcage-TEM radio frequency (RF) coil for multinuclear MRI/MRS |
US8418073B2 (en) * | 2009-03-09 | 2013-04-09 | Intuitive Surgical Operations, Inc. | User interfaces for electrosurgical tools in robotic surgical systems |
JP5384171B2 (ja) * | 2009-04-02 | 2014-01-08 | 株式会社日立メディコ | アンテナ装置及び磁気共鳴検査装置 |
US20120169341A1 (en) * | 2010-12-29 | 2012-07-05 | General Electric Company | Integrated gamma ray detector ring and rf body coil |
-
2013
- 2013-10-23 WO PCT/IB2013/059567 patent/WO2014068447A1/en active Application Filing
- 2013-10-23 BR BR112015009531A patent/BR112015009531A2/pt not_active IP Right Cessation
- 2013-10-23 US US14/439,137 patent/US10060994B2/en active Active
- 2013-10-23 RU RU2015120519A patent/RU2015120519A/ru not_active Application Discontinuation
- 2013-10-23 JP JP2015540240A patent/JP6402112B2/ja active Active
- 2013-10-23 CN CN201380056843.7A patent/CN104769451B/zh active Active
- 2013-10-23 EP EP13821963.9A patent/EP2914971A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JP2015533327A (ja) | 2015-11-24 |
US20150276898A1 (en) | 2015-10-01 |
EP2914971A1 (en) | 2015-09-09 |
CN104769451B (zh) | 2018-04-03 |
WO2014068447A1 (en) | 2014-05-08 |
US10060994B2 (en) | 2018-08-28 |
RU2015120519A (ru) | 2016-12-20 |
JP6402112B2 (ja) | 2018-10-10 |
CN104769451A (zh) | 2015-07-08 |
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