JP2022535676A - ハイブリッドmr-pet及びmr-spect断層撮影装置用のダイポールアンテナアレイ、並びにそのダイポールアンテナアレイの使用、及びダイポールアンテナアレイを有するmr-pet又はmr-spect断層撮影装置 - Google Patents
ハイブリッドmr-pet及びmr-spect断層撮影装置用のダイポールアンテナアレイ、並びにそのダイポールアンテナアレイの使用、及びダイポールアンテナアレイを有するmr-pet又はmr-spect断層撮影装置 Download PDFInfo
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- 238000002603 single-photon emission computed tomography Methods 0.000 title claims abstract description 69
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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
- G01R33/44—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]
-
- 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]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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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
- H01Q21/061—Two dimensional planar arrays
- H01Q21/062—Two dimensional planar arrays using dipole aerials
-
- 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
-
- 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
- H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
-
- 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
- H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
- H01Q9/285—Planar dipole
-
- 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
Abstract
Description
Claims (15)
- 少なくとも2つのダイポールアンテナ素子を有するダイポールアンテナアレイにおいて、
ダイポールアンテナ素子(1)は、一方の端部に折り畳み部(2)を有し、
この折り畳み部は、湾曲部(3)、湾曲した領域(4)、並びにダイポールアンテナ素子(1)の長手方向へのダイポールアンテナ素子(1)の湾曲した領域(5)の投影部からなり、
ダイポールアンテナ素子(1)は、空洞を少なくとも部分的に取り囲む、
ことを特徴とするダイポールアンテナアレイ。 - 折り畳み部(2)は、別の構成要素の少なくとも1つの接続を可能にするように形成されている、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アレイ。
- 接続部は、コンデンサ、電気接続線、同軸ケーブル、インダクタ、前置増幅器、整合回路、送信/受信スイッチ、対称ネットワーク、整合ネットワーク、又は離調回路との接続に適している、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アレイ。
- 折り畳み部(2)の外側には接続部がない、ことを特徴とする請求項1から3のいずれか一項に記載のダイポールアンテナアレイ。
- ダイポールアンテナ素子(1)の端部は、端部で、90°以上から180°までの角度で、折り畳まれている、ことを特徴とする請求項1から4のいずれか一項に記載のダイポールアンテナアレイ。
- 折り畳み部(2)は、丸み又は折れ曲がりによって実現されている、少なくとも1つの湾曲部(3)によって形成される、ことを特徴とする請求項1から5のいずれか一項に記載のダイポールアンテナアレイ。
- 電気部品用の接続部は、折り畳み部(2)の湾曲した領域(5)及びダイポールアンテナ素子(1)への湾曲した領域(5)の投影部に分配されている、ことを特徴とする請求項1から6のいずれか一項に記載のダイポールアンテナアレイ。
- ダイポールアンテナ素子(1)は、低い原子番号の金属からなる、ことを特徴とする請求項1から7のいずれか一項に記載のダイポールアンテナアレイ。
- ダイポールアンテナ素子(1)の長手方向に垂直な断面は、ガンマ量子に対する吸収係数に急激な変化を生じないように形成されている、ことを特徴とする請求項1から8のいずれか一項に記載のダイポールアンテナアレイ。
- ダイポールアンテナ素子(1)は、高周波電界の侵入深さの1から5倍に相当する厚さを有する、ことを特徴とする請求項1から9のいずれか一項に記載のダイポールアンテナアレイ。
- ダイポールアンテナ素子(1)を3から16個有する、ことを特徴とする請求項1から10のいずれか一項に記載のダイポールアンテナアレイ。
- 少なくとも1つのダイポールアンテナ素子(1)が、両側の端部で折り畳まれている、ことを特徴とする請求項1から11のいずれか一項に記載のダイポールアンテナアレイ。
- 全ての折り畳み部(2)は、ダイポールアンテナアレイの同じ端部にある、ことを特徴とする請求項1から9のいずれか一項に記載のダイポールアンテナアレイ。
- 接続部を有するダイポールアンテナ素子の折り畳み部(2)がPET若しくはSPECT測定範囲の外側に位置するMR-PET又はMR-SPECT断層撮影装置におけるアンテナとしての、請求項1から13のいずれか1項に記載のダイポールアンテナアレイの使用。
- 接続部を有するダイポールアンテナ素子の折り畳み部(2)が、PET又はSPECT測定範囲の外側に位置するアンテナとしての、請求項1から12のいずれか1項に記載のダイポールアンテナアレイを有するMR-PET又はMR-SPECT断層撮影装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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DE102019003949.1 | 2019-06-06 | ||
DE102019003949.1A DE102019003949A1 (de) | 2019-06-06 | 2019-06-06 | Dipolantennen-Array für hybride MR-PET und MR-SPECT Tomographen sowie dessen Verwendung und MR-PET oder MR-SPECT Tomograph mit einem Dipolantennen-Array |
PCT/DE2020/000092 WO2020244689A1 (de) | 2019-06-06 | 2020-05-08 | Dipolantennen-array für hybride mr-pet und mr-spect tomographen sowie dessen verwendung und mr-pet oder mr-spect tomograph mit einem dipolantennen-array |
Publications (2)
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JP2022535676A true JP2022535676A (ja) | 2022-08-10 |
JPWO2020244689A5 JPWO2020244689A5 (ja) | 2024-03-01 |
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JP2021565961A Pending JP2022535676A (ja) | 2019-06-06 | 2020-05-08 | ハイブリッドmr-pet及びmr-spect断層撮影装置用のダイポールアンテナアレイ、並びにそのダイポールアンテナアレイの使用、及びダイポールアンテナアレイを有するmr-pet又はmr-spect断層撮影装置 |
Country Status (7)
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US (1) | US20220236353A1 (ja) |
EP (1) | EP3980800B1 (ja) |
JP (1) | JP2022535676A (ja) |
DE (1) | DE102019003949A1 (ja) |
ES (1) | ES2959829T3 (ja) |
HU (1) | HUE063779T2 (ja) |
WO (1) | WO2020244689A1 (ja) |
Family Cites Families (4)
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GB1322300A (en) * | 1972-04-27 | 1973-07-04 | Telecommunications Ltd | Aerials |
DE10322186B3 (de) | 2003-05-16 | 2004-12-02 | Karl Fischer | Kurze Endgespeiste Dipolantenne |
WO2013159053A1 (en) * | 2012-04-19 | 2013-10-24 | New York University | Dipole array arrangement |
US10806416B2 (en) * | 2015-08-05 | 2020-10-20 | Shanghai United Imaging Healthcare Co., Ltd. | PET/MRI insert system |
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2019
- 2019-06-06 DE DE102019003949.1A patent/DE102019003949A1/de active Pending
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2020
- 2020-05-08 JP JP2021565961A patent/JP2022535676A/ja active Pending
- 2020-05-08 WO PCT/DE2020/000092 patent/WO2020244689A1/de active Application Filing
- 2020-05-08 ES ES20729613T patent/ES2959829T3/es active Active
- 2020-05-08 EP EP20729613.8A patent/EP3980800B1/de active Active
- 2020-05-08 US US17/615,124 patent/US20220236353A1/en active Pending
- 2020-05-08 HU HUE20729613A patent/HUE063779T2/hu unknown
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EP3980800B1 (de) | 2023-08-02 |
HUE063779T2 (hu) | 2024-01-28 |
EP3980800A1 (de) | 2022-04-13 |
US20220236353A1 (en) | 2022-07-28 |
WO2020244689A1 (de) | 2020-12-10 |
ES2959829T3 (es) | 2024-02-28 |
DE102019003949A1 (de) | 2020-12-10 |
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