JP6422875B2 - 別々に制御されるリング部材とラングとを有する、磁気共鳴(mr)撮像システム用の無線周波数(rf)バードケージコイル - Google Patents
別々に制御されるリング部材とラングとを有する、磁気共鳴(mr)撮像システム用の無線周波数(rf)バードケージコイル Download PDFInfo
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- 238000003384 imaging method Methods 0.000 title description 30
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 7
- 238000002595 magnetic resonance imaging Methods 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 238000006880 cross-coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
Classifications
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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
- G01R33/34046—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
- G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
- G01R33/3614—RF power amplifiers
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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
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
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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
- G01R33/54—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
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Description
12 MRスキャナ
14 主磁石
16 検査空間
18 中心軸
20 関心対象物
22 磁気傾斜コイルシステム
24 RFスクリーン
26 MR撮像システム制御ユニット
28 モニタユニット
30 MR画像再構成ユニット
32 制御ライン
34 RF送信器ユニット
36 RF切替ユニット
38 制御ライン
40 RFアンテナ装置
42 ラング
44 ラング
46 ラング素子
48 延在の主方向
50 仮想円筒
52 円筒軸
54 横断アンテナ部材
56 8個のグループ
58 8個のグループ
60 カップリング場所
62 RF回路
64 RF回路
66 RF回路
68 デジタル送信器
70 光ファイバ制御ライン
72 RF源
74 RF電力分配器
76 増幅器
78 インピーダンス整合回路
80 伝送ライン
Claims (13)
- 導電性材料から作られる複数のラングと、前記複数のラングのうちの少なくとも1つのラングと電磁的にカップリングされる、導電性材料から作られる少なくとも1つの横断アンテナ部材と、複数のRF回路と、を有する、磁気共鳴撮像システムの検査空間にRF磁場を付与するためのRFアンテナ装置であって、
前記複数のラングの各々のラングは、延在の主方向を有し、動作状態において、前記複数のラングの前記延在の主方向は、前記延在の主方向と平行に延びる円筒軸を有する仮想円筒の外側に沿って、略平行に、方位角方向に略等間隔な関係で配置され、
前記少なくとも1つの横断アンテナ部材は、動作状態において、前記複数のラングの前記延在の主方向と略垂直な平面内に配置され、
前記複数のRF回路のうちの少なくとも1つのRF回路は、前記複数のラングの各々のラングに対しては、相互のデカップリングのために、及び、個々にRF電力を供給するために提供され、前記少なくとも1つの横断アンテナ部材に対しては、前記ラングに供給されるRF電力とは無関係に個々にRF電力を供給するために提供される、
RFアンテナ装置。 - 前記複数のラングのうちの少なくとも1つのラングは、前記ラングの前記延在の主方向に直列に配列される、少なくとも2つのラング素子へと分割されている、請求項1に記載のRFアンテナ装置。
- 前記少なくとも1つの横断アンテナ部材は、略円形状を有する、請求項1に記載のRFアンテナ装置。
- 前記平面内にある1つの仮想円形線上に実質的に配列される、少なくとも2つの横断アンテナ部材を有する、請求項1に記載のRFアンテナ装置。
- 複数の横断アンテナ部材を有する、請求項1に記載のRFアンテナ装置。
- 前記複数の横断アンテナ部材は、少なくとも2つの仮想円形線に沿って配列され、各仮想円形線は、前記延在の主方向において平行に離間された態様で配置される平面内にある、請求項5に記載のRFアンテナ装置。
- 前記複数のラングのうちのラングの数は、1つの平面又は複数の平面のうちの1つ内に配置される横断アンテナ部材の数と等しい、請求項1乃至6の何れか一項に記載のRFアンテナ装置。
- 前記複数のラングの各々のラングは、1つの平面又は複数の平面のうちの1つ内に配置される前記横断アンテナ部材のうちの1つから電磁的にデカップリングされ、前記横断アンテナ部材の各々は、前記複数のラングのうちの1つのラングから電磁的にデカップリングされる、請求項7に記載のRFアンテナ装置。
- 前記横断アンテナ部材と前記ラングとの電磁的なカップリングが、2つのそれぞれの横断アンテナ部材の端部と、ラングの端部とで提供されるか、又は、それぞれの前記横断アンテナ部材の中央部と、それぞれの前記ラングの端部とで提供される、請求項8に記載のRFアンテナ装置。
- 前記複数のRF回路の各々のRF回路は、前記複数のラングのうちの1つのラング、又は前記少なくとも1つの横断アンテナ部材のうちの、少なくとも1つに、RF電力を付与するために提供される、少なくとも1つのRF源を有する、請求項1乃至9の何れか一項に記載のRFアンテナ装置。
- 単一のRF源と、少なくとも1つのRF電力分配器とを更に有し、前記単一のRF源は、前記少なくとも1つのRF電力分配器を介して、前記複数のラングと、前記少なくとも1つの横断アンテナ部材とに、個々にRF電力を供給するために提供される、請求項1乃至9の何れか一項に記載のRFアンテナ装置。
- 前記ラングと前記横断アンテナ部材とは、TEM型の共振器ストリップとしてデザインされる、請求項1乃至11の何れか一項に記載のRFアンテナ装置。
- 実質的な静磁場を発生させるための主磁石と、
前記静磁場に重畳される傾斜磁場を発生させるための磁気傾斜コイルシステムと、
関心対象物を中に配置するために提供される検査空間と、
前記関心対象物の原子核を励起するように、前記検査空間にRF磁場を付与するために提供される、少なくとも1つの請求項1乃至12の何れか一項に記載のRFアンテナ装置と、
を有する、磁気共鳴撮像システム。
Applications Claiming Priority (3)
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US201261718219P | 2012-10-25 | 2012-10-25 | |
US61/718,219 | 2012-10-25 | ||
PCT/IB2013/059335 WO2014064573A1 (en) | 2012-10-25 | 2013-10-14 | Radio frequency (rf) birdcage coil with separately controlled ring members and rungs for use in a magnetic resonance (mr) imaging system |
Publications (2)
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JP2015532868A JP2015532868A (ja) | 2015-11-16 |
JP6422875B2 true JP6422875B2 (ja) | 2018-11-14 |
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JP2015538593A Active JP6422875B2 (ja) | 2012-10-25 | 2013-10-14 | 別々に制御されるリング部材とラングとを有する、磁気共鳴(mr)撮像システム用の無線周波数(rf)バードケージコイル |
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US (1) | US9983279B2 (ja) |
EP (1) | EP2912483B1 (ja) |
JP (1) | JP6422875B2 (ja) |
CN (1) | CN104755950B (ja) |
WO (1) | WO2014064573A1 (ja) |
Families Citing this family (57)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104122517A (zh) * | 2013-04-25 | 2014-10-29 | 西门子公司 | 用于磁共振断层造影系统的天线装置 |
BR112015031516A2 (pt) * | 2013-06-21 | 2017-07-25 | Koninklijke Philips Nv | aparelho de ressonância magnética |
US10006973B2 (en) | 2016-01-21 | 2018-06-26 | Lockheed Martin Corporation | Magnetometer with a light emitting diode |
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US9590601B2 (en) | 2014-04-07 | 2017-03-07 | Lockheed Martin Corporation | Energy efficient controlled magnetic field generator circuit |
US9829545B2 (en) | 2015-11-20 | 2017-11-28 | Lockheed Martin Corporation | Apparatus and method for hypersensitivity detection of magnetic field |
US9638821B2 (en) | 2014-03-20 | 2017-05-02 | Lockheed Martin Corporation | Mapping and monitoring of hydraulic fractures using vector magnetometers |
US9835693B2 (en) | 2016-01-21 | 2017-12-05 | Lockheed Martin Corporation | Higher magnetic sensitivity through fluorescence manipulation by phonon spectrum control |
US9557391B2 (en) | 2015-01-23 | 2017-01-31 | Lockheed Martin Corporation | Apparatus and method for high sensitivity magnetometry measurement and signal processing in a magnetic detection system |
US10088452B2 (en) | 2016-01-12 | 2018-10-02 | Lockheed Martin Corporation | Method for detecting defects in conductive materials based on differences in magnetic field characteristics measured along the conductive materials |
US10520558B2 (en) | 2016-01-21 | 2019-12-31 | Lockheed Martin Corporation | Diamond nitrogen vacancy sensor with nitrogen-vacancy center diamond located between dual RF sources |
US9845153B2 (en) | 2015-01-28 | 2017-12-19 | Lockheed Martin Corporation | In-situ power charging |
EP3250887A4 (en) | 2015-01-28 | 2018-11-14 | Lockheed Martin Corporation | Magnetic navigation methods and systems utilizing power grid and communication network |
WO2016126435A1 (en) | 2015-02-04 | 2016-08-11 | Lockheed Martin Corporation | Apparatus and method for estimating absolute axes' orientations for a magnetic detection system |
GB2551090A (en) | 2015-02-04 | 2017-12-06 | Lockheed Corp | Apparatus and method for recovery of three dimensional magnetic field from a magnetic detection system |
WO2017087013A1 (en) | 2015-11-20 | 2017-05-26 | Lockheed Martin Corporation | Apparatus and method for closed loop processing for a magnetic detection system |
WO2017095454A1 (en) | 2015-12-01 | 2017-06-08 | Lockheed Martin Corporation | Communication via a magnio |
AU2016388316A1 (en) | 2016-01-21 | 2018-09-06 | Lockheed Martin Corporation | Diamond nitrogen vacancy sensor with common RF and magnetic fields generator |
WO2017127081A1 (en) | 2016-01-21 | 2017-07-27 | Lockheed Martin Corporation | Diamond nitrogen vacancy sensor with circuitry on diamond |
WO2017127079A1 (en) | 2016-01-21 | 2017-07-27 | Lockheed Martin Corporation | Ac vector magnetic anomaly detection with diamond nitrogen vacancies |
AU2016387312A1 (en) | 2016-01-21 | 2018-09-06 | Lockheed Martin Corporation | Magnetometer with light pipe |
WO2017127098A1 (en) | 2016-01-21 | 2017-07-27 | Lockheed Martin Corporation | Diamond nitrogen vacancy sensed ferro-fluid hydrophone |
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US10677953B2 (en) | 2016-05-31 | 2020-06-09 | Lockheed Martin Corporation | Magneto-optical detecting apparatus and methods |
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US10345396B2 (en) | 2016-05-31 | 2019-07-09 | Lockheed Martin Corporation | Selected volume continuous illumination magnetometer |
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US10145910B2 (en) | 2017-03-24 | 2018-12-04 | Lockheed Martin Corporation | Photodetector circuit saturation mitigation for magneto-optical high intensity pulses |
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US10359479B2 (en) | 2017-02-20 | 2019-07-23 | Lockheed Martin Corporation | Efficient thermal drift compensation in DNV vector magnetometry |
US10371765B2 (en) | 2016-07-11 | 2019-08-06 | Lockheed Martin Corporation | Geolocation of magnetic sources using vector magnetometer sensors |
US20170343621A1 (en) | 2016-05-31 | 2017-11-30 | Lockheed Martin Corporation | Magneto-optical defect center magnetometer |
US10228429B2 (en) | 2017-03-24 | 2019-03-12 | Lockheed Martin Corporation | Apparatus and method for resonance magneto-optical defect center material pulsed mode referencing |
US10527746B2 (en) | 2016-05-31 | 2020-01-07 | Lockheed Martin Corporation | Array of UAVS with magnetometers |
US10330744B2 (en) | 2017-03-24 | 2019-06-25 | Lockheed Martin Corporation | Magnetometer with a waveguide |
KR101820779B1 (ko) | 2016-12-01 | 2018-01-22 | 가천대학교 산학협력단 | 균일성이 개선된 자기공명 영상용 체적형 rf 송신코일 |
EP3559690B1 (en) * | 2016-12-22 | 2021-08-18 | Koninklijke Philips N.V. | Rf coil device and rf shield device for different mri modes |
US10551449B2 (en) * | 2017-01-11 | 2020-02-04 | Neva Electromagnetics, LLC | Whole body non-contact electrical stimulation device with variable parameters |
US10338164B2 (en) | 2017-03-24 | 2019-07-02 | Lockheed Martin Corporation | Vacancy center material with highly efficient RF excitation |
US10379174B2 (en) | 2017-03-24 | 2019-08-13 | Lockheed Martin Corporation | Bias magnet array for magnetometer |
US10459041B2 (en) | 2017-03-24 | 2019-10-29 | Lockheed Martin Corporation | Magnetic detection system with highly integrated diamond nitrogen vacancy sensor |
US10371760B2 (en) | 2017-03-24 | 2019-08-06 | Lockheed Martin Corporation | Standing-wave radio frequency exciter |
EP3428671A1 (en) * | 2017-07-11 | 2019-01-16 | Koninklijke Philips N.V. | Rf feed circuit for magnetic resonance imaging |
EP3428673A1 (en) * | 2017-07-13 | 2019-01-16 | Koninklijke Philips N.V. | Passive rf shim resonator for field homogenization of an rf antenna device for tx mode and rx mode |
EP3470864A1 (en) | 2017-10-12 | 2019-04-17 | Koninklijke Philips N.V. | Feeding a coil for magnetic resonance imaging |
US11061090B2 (en) * | 2017-11-08 | 2021-07-13 | Canon Medical Systems Corporation | Magnetic resonance imaging apparatus and RF coil |
JP7250476B2 (ja) * | 2017-11-08 | 2023-04-03 | キヤノンメディカルシステムズ株式会社 | 磁気共鳴イメージング装置及びrfコイル |
TWI682583B (zh) * | 2017-11-30 | 2020-01-11 | 財團法人金屬工業研究發展中心 | 利用非輻射耦合邊實現隔離之多天線系統 |
CN109725273B (zh) * | 2018-11-23 | 2020-04-10 | 厦门大学 | 一种磁共振双模式调谐氢氟变形鸟笼射频线圈 |
CN110764030B (zh) * | 2019-11-14 | 2021-03-09 | 中国原子能科学研究院 | 光泵磁力仪射频线圈装置 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5132621A (en) * | 1990-04-24 | 1992-07-21 | General Electric Company | Radio frequency field coil and power splitter for nmr |
US5075624A (en) * | 1990-05-29 | 1991-12-24 | North American Philips Corporation | Radio frequency quadrature coil construction for magnetic resonance imaging (mri) apparatus |
JP2638419B2 (ja) * | 1993-01-31 | 1997-08-06 | 株式会社島津製作所 | Mri装置の直交型rfコイル |
JPH10192253A (ja) * | 1997-01-13 | 1998-07-28 | Shimadzu Corp | 磁気共鳴イメージング装置用rfコイル |
DE10124465A1 (de) | 2001-05-19 | 2002-11-21 | Philips Corp Intellectual Pty | Sende- und Empfangsspule für MR-Gerät |
US6995561B2 (en) | 2002-04-01 | 2006-02-07 | Ge Medical Systems Global Technology Company, Llc | Multiple channel, microstrip transceiver volume array for magnetic resonance imaging |
CN100526906C (zh) * | 2002-11-27 | 2009-08-12 | 皇家飞利浦电子股份有限公司 | 退化的笼式线圈和使用该线圈的磁共振成像系统及方法 |
WO2004048987A2 (en) * | 2002-11-27 | 2004-06-10 | Koninklijke Philips Electronics N.V. | Degenerate birdcage coil and transmit/receive apparatus and method for same |
DE10314215B4 (de) * | 2003-03-28 | 2006-11-16 | Siemens Ag | Magnetresonanzantenne und Verfahren zur Verstimmung deren Eigenresonanzfrequenz |
DE102004045691B4 (de) | 2003-10-27 | 2009-10-01 | Siemens Ag | Verfahren zum Erzeugen eines homogenen hochfrequenten Magnetfelds in einem räumlichen Untersuchungsvolumen einer Magnetresonanzanlage |
US7053618B2 (en) | 2003-11-26 | 2006-05-30 | General Electric Company | Method and apparatus to generate an RF excitation consistent with a desired excitation profile using a transmit coil array |
JP4891921B2 (ja) | 2004-12-22 | 2012-03-07 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 伝送ライン端部リングを備えたラジオ周波数コイル |
ATE477503T1 (de) * | 2005-01-24 | 2010-08-15 | Koninkl Philips Electronics Nv | Orthogonale spule zur kernspintomographie |
DE102007024824B3 (de) | 2007-05-29 | 2009-02-26 | Siemens Ag | Anordnung zur Ansteuerung einer Antennenanordnung und Einrichtung zur Signalaufteilung zur Ansteuerung einer Antennenanordnung |
DE102007059522B4 (de) | 2007-12-11 | 2009-09-17 | Siemens Ag | Magnetresonanzanlage mit verlustleistungsoptimiertem Betrieb |
CN101896830A (zh) * | 2007-12-13 | 2010-11-24 | 皇家飞利浦电子股份有限公司 | 适于提供端环模式的双调谐体积线圈 |
US9535142B2 (en) * | 2011-04-21 | 2017-01-03 | Koninklijke Philips Electronics N.V. | Multichannel RF volume resonator for MRI |
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EP2912483A1 (en) | 2015-09-02 |
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