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1. (WO2018141703) INDUCTIVELY FEEDING AN RF COIL FOR MAGNETIC RESONANCE IMAGING
국제사무국에 기록된 최신 서지정보    정보 제출

공개번호: WO/2018/141703 국제출원번호: PCT/EP2018/052192
공개일: 09.08.2018 국제출원일: 30.01.2018
IPC:
G01R 33/36 (2006.01) ,G01R 33/34 (2006.01)
G SECTION G — 물리학
01
측정; 시험
R
전기변량의 측정; 자기변량의 측정
33
자기량을 측정하는 계기 또는 장치
20
자기공명을 포함하는 것
28
그룹 33/44 ~ 33/04에 적용된 장치의 세부
32
여기 또는 검출 장치, 예. 고주파신호를 이용하는 것
36
전기적 세부, 예. 수신기에 코일의 매칭 혹은 결합
G SECTION G — 물리학
01
측정; 시험
R
전기변량의 측정; 자기변량의 측정
33
자기량을 측정하는 계기 또는 장치
20
자기공명을 포함하는 것
28
그룹 33/44 ~ 33/04에 적용된 장치의 세부
32
여기 또는 검출 장치, 예. 고주파신호를 이용하는 것
34
구조적 세부, 예. 공진기
출원인:
KONINKLIJKE PHILIPS N.V. [NL/NL]; High Tech Campus 5 5656 AE Eindhoven, NL
발명자:
LEUSSLER, Christoph; NL
LIPS, Oliver; NL
대리인:
COHEN, Julius, Simon; NL
DE HAAN, Poul, Erik; NL
우선권 정보:
17153857.231.01.2017EP
발명의 명칭: (EN) INDUCTIVELY FEEDING AN RF COIL FOR MAGNETIC RESONANCE IMAGING
(FR) ALIMENTATION INDUCTIVE D'UNE BOBINE RF POUR IMAGERIE PAR RÉSONANCE MAGNÉTIQUE
요약서:
(EN) The present invention is directed to inductively feeding a RF coil (9) for magnetic resonance imaging (MRI), and in particular to a system comprising a RF coil (9) for magnetic resonance imaging and at least one feeding coil (14) for inductively feeding the RF coil (9) with an RF signal, and further to a method for inductively feeding a RF coil (9) for magnetic resonance imaging with at least one RF signal. According to the invention, in this system, the at least one feeding coil (14) is configured and arranged for feeding the RF signal into a conductive coil element (10) of the RF coil (9) at a first position and at a second position, the first position being different from the second position, wherein the direction of the magnetic field of the RF signal at the first position is different from the magnetic field of the RF signal at the second position. In this way, the invention provides for an inductive RF feeding of a resonator which can be achieved in a compensated way, i.e. the local RF field of the feeding loop can be compensated at distant locations. Moreover, the directions of the magnetic fields can be adapted to the respective direction of the magnetic field surrounding the coil element (10) at the respective feeding location. In this way, the invention enables to improve the power efficiency of an RF coil.
(FR) La présente invention concerne l'alimentation inductive d'une bobine RF (9) pour une imagerie par résonance magnétique (IRM), et en particulier un système comprenant une bobine RF (9) pour une imagerie par résonance magnétique et au moins une bobine d'alimentation (14) permettant d'alimenter par induction la bobine RF (9) avec un signal RF, et en outre un procédé permettant d'alimenter par induction une bobine RF (9) pour une imagerie par résonance magnétique avec au moins un signal RF. Selon l'invention, dans ce système, lesdites bobines d'alimentation (14) sont conçues et agencées de manière à alimenter le signal RF dans un élément de bobine conducteur (10) de la bobine RF (9) dans une première position et dans une seconde position, la première position étant différente de la seconde position, la direction du champ magnétique du signal RF à la première position étant différente du champ magnétique du signal RF à la seconde position. Ainsi, l'invention fournit une alimentation RF inductive d'un résonateur pouvant être obtenue d'une manière compensée, c'est-à-dire que le champ RF local de la boucle d'alimentation peut être compensé à des emplacements distants. De plus, les directions des champs magnétiques peuvent être adaptées à la direction respective du champ magnétique entourant l'élément de bobine (10) à l'emplacement d'alimentation respectif. De cette manière, l'invention permet d'améliorer l'efficacité énergétique d'une bobine RF.
front page image
지정국: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
아프리카지역 지식재산권기구(ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
유라시아 특허청 (AM, AZ, BY, KG, KZ, RU, TJ, TM)
유럽 특허청(EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
공개언어: 영어 (EN)
출원언어: 영어 (EN)