JP6944521B2 - 核磁気共鳴法によって画像を撮影するためのダイポールアンテナ装置 - Google Patents
核磁気共鳴法によって画像を撮影するためのダイポールアンテナ装置 Download PDFInfo
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- JP6944521B2 JP6944521B2 JP2019525792A JP2019525792A JP6944521B2 JP 6944521 B2 JP6944521 B2 JP 6944521B2 JP 2019525792 A JP2019525792 A JP 2019525792A JP 2019525792 A JP2019525792 A JP 2019525792A JP 6944521 B2 JP6944521 B2 JP 6944521B2
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- 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
- G01R33/34038—Loopless coils, i.e. linear wire antennas
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- 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
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- 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
- G01R33/42—Screening
- G01R33/422—Screening of the radio frequency field
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/273—Adaptation for carrying or wearing by persons or animals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
- H01Q21/205—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path providing an omnidirectional coverage
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- 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
- G01R33/3678—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
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/48—NMR imaging systems
- G01R33/4806—Functional imaging of brain activation
-
- 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
- G01R33/4808—Multimodal MR, e.g. MR combined with positron emission tomography [PET], MR combined with ultrasound or MR combined with computed tomography [CT]
- G01R33/481—MR combined with positron emission tomography [PET] or single photon emission computed tomography [SPECT]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Neurosurgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- High Energy & Nuclear Physics (AREA)
- Epidemiology (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Description
Claims (10)
- 少なくとも二つのダイポールアンテナが、電気的ではなく機械的に相互に接続されている1H/X核共鳴をデカップリングする為のダイポールアンテナ装置において、
前記ダイポールアンテナが、交差箇所で交差し、この交差箇所から延在する複数のダイポールアンテナアームを形成し、これらの複数のダイポールアンテナアームは、一つの側がダイポールアンテナの交差箇所で閉じられていて且つ他方の側が身体の一部分又は頭部を挿入可能な空間内に配置されていて、及び複数のアンテナアームには表面コイルが設けられていて、この表面コイルはX核共鳴周波数に調整されていることを特徴とするダイポールアンテナ装置。 - 3〜16個のダイポールアンテナを具備することを特徴とする請求項1に記載のダイポールアンテナ装置。
- 前記複数のダイポールアンテナは、半円形で又は楕円形の一部で又は他の円形の幾何学形状の一部で形成する少なくとも一つの湾曲部分を有することを特徴とする請求項1又は2に記載のダイポールアンテナ装置。
- 前記複数のダイポールアンテナは、それらの中心で交差することを特徴とする請求項1〜3のいずれか1項に記載のダイポールアンテナ装置。
- 前記複数のダイポールアンテナアームは、一つの側がダイポールアンテナの交差箇所で閉じられていて且つ他方の側が身体の一部分又は頭部を挿入可能な空間内に複数の縦材部を形成し、この複数の縦材部が互いに平行な状態で存在する円柱体形状に構成されている又はこの複数の縦材部が円錐形体形状若しくは切頭円錐形体形状に構成されていることを特徴とする請求項1〜4のいずれか1項に記載のダイポールアンテナ装置。
- 前記複数のダイポールアンテナは、キャパシタンス又はインダクタンスを含むことを特徴とする請求項1〜5のいずれか1項に記載のダイポールアンテナ装置。
- 前記ダイポールアンテナ装置は、シールドキャップを有することを特徴とする請求項1〜6のいずれか1項に記載のダイポールアンテナ装置。
- 前記シールドキャップは、前記複数のダイポールアンテナの交差箇所に取付けられていることを特徴とする請求項7に記載のダイポールアンテナ装置。
- 前記シールドキャップは、前記ダイポールアンテナ装置の、発電機に接続されている給電点に取付けられていることを特徴とする請求項7又は8に記載のダイポールアンテナ装置。
- 少なくとも一つの表面コイルが、少なくとも一つのダイポールアンテナアームに配置されていることを特徴とする請求項1〜9のいずれか1項に記載のダイポールアンテナ装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016014978.7A DE102016014978A1 (de) | 2016-12-15 | 2016-12-15 | Dipolantennenanordnung für die Aufnahme von Bildern mit kernmagnetischen Resonanzmethoden |
DE102016014978.7 | 2016-12-15 | ||
PCT/DE2017/000402 WO2018108193A1 (de) | 2016-12-15 | 2017-11-24 | Dipolantennenanordnung für die aufnahme von bildern mit kernmagnetischen resonanzmethoden |
Publications (3)
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JP2020501636A JP2020501636A (ja) | 2020-01-23 |
JP2020501636A5 JP2020501636A5 (ja) | 2021-08-12 |
JP6944521B2 true JP6944521B2 (ja) | 2021-10-06 |
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JP2019525792A Active JP6944521B2 (ja) | 2016-12-15 | 2017-11-24 | 核磁気共鳴法によって画像を撮影するためのダイポールアンテナ装置 |
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US (1) | US11054491B2 (ja) |
EP (1) | EP3555648B1 (ja) |
JP (1) | JP6944521B2 (ja) |
CN (1) | CN110235013B (ja) |
DE (1) | DE102016014978A1 (ja) |
WO (1) | WO2018108193A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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KR102297057B1 (ko) * | 2019-06-17 | 2021-09-06 | 가천대학교 산학협력단 | 자기공명영상을 위한 모노-다이폴 교배 배열 안테나 rf 코일 |
CA3158624A1 (en) * | 2019-10-25 | 2021-04-29 | Hyperfine Operations, Inc. | Systems and methods for detecting patient motion during magnetic resonance imaging |
KR102276107B1 (ko) * | 2019-11-14 | 2021-07-13 | 가천대학교 산학협력단 | 새장형 코일과 다이폴 안테나 조합을 기반으로 하는 자기공명영상용 rf 코일 |
CN112986881B (zh) * | 2019-12-17 | 2022-12-20 | 上海联影医疗科技股份有限公司 | 磁共振系统校准方法、成像方法以及磁共振系统 |
CN113253174B (zh) * | 2021-05-13 | 2023-06-16 | 上海联影医疗科技股份有限公司 | 接收天线组件及磁共振装置 |
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US5602479A (en) * | 1995-08-08 | 1997-02-11 | Picker International, Inc. | Quadrature radio frequency coil for magnetic resonance imaging |
EP1624314A1 (de) | 2004-08-05 | 2006-02-08 | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. | Helmförmige TEM-Antenne für Magnetresonanzmessungen |
WO2008088984A2 (en) * | 2007-01-11 | 2008-07-24 | University Of Pittsburgh - Of The Commonwealth System Of Higher Education | Transponder networks and transponder systems employing a touch probe reader device |
WO2009127431A1 (en) | 2008-04-18 | 2009-10-22 | Eidgenössische Technische Hochschule (ETH) | Travelling-wave nuclear magnetic resonance method |
JP4603098B2 (ja) | 2008-10-14 | 2010-12-22 | オリンパスメディカルシステムズ株式会社 | 医療システム |
GB2469159B (en) | 2009-04-03 | 2011-12-21 | Siemens Ag | Upconverter |
DE102009025716A1 (de) | 2009-06-20 | 2010-12-30 | Forschungszentrum Jülich GmbH | Messinstrument, elektrische Widerstandselemente und Messsystem zur Messung zeitveränderlicher magnetischer Felder oder Feldgradienten |
TW201434210A (zh) | 2013-02-26 | 2014-09-01 | Galtronics Corp Ltd | 雙極化偶極天線及其十字耦合元件 |
DE102013012295A1 (de) * | 2013-07-24 | 2015-01-29 | Kathrein-Werke Kg | Antenne für Dual- oder Multiband-Betrieb |
CN204407506U (zh) * | 2015-02-04 | 2015-06-17 | 常熟泓淋电子有限公司 | 混合式辐射体天线结构 |
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- 2016-12-15 DE DE102016014978.7A patent/DE102016014978A1/de not_active Withdrawn
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- 2017-11-24 CN CN201780070842.6A patent/CN110235013B/zh active Active
- 2017-11-24 WO PCT/DE2017/000402 patent/WO2018108193A1/de unknown
- 2017-11-24 JP JP2019525792A patent/JP6944521B2/ja active Active
- 2017-11-24 EP EP17811433.6A patent/EP3555648B1/de active Active
- 2017-11-24 US US16/349,633 patent/US11054491B2/en active Active
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Publication number | Publication date |
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US20200072919A1 (en) | 2020-03-05 |
DE102016014978A1 (de) | 2018-06-21 |
US11054491B2 (en) | 2021-07-06 |
EP3555648B1 (de) | 2020-09-16 |
WO2018108193A1 (de) | 2018-06-21 |
CN110235013A (zh) | 2019-09-13 |
CN110235013B (zh) | 2021-10-29 |
EP3555648A1 (de) | 2019-10-23 |
JP2020501636A (ja) | 2020-01-23 |
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