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1. (WO2019067905) MAGNETIC RESONANCE COILS FOR SIMULTANEOUS IMAGING AND B0 SHIMMING
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Pub. No.: WO/2019/067905 International Application No.: PCT/US2018/053434
Publication Date: 04.04.2019 International Filing Date: 28.09.2018
IPC:
G01R 33/32 (2006.01) ,A61B 5/055 (2006.01) ,G01R 33/28 (2006.01)
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33
Arrangements or instruments for measuring magnetic variables
20
involving magnetic resonance
28
Details of apparatus provided for in groups G01R33/44-G01R33/6496
32
Excitation or detection systems, e.g. using radiofrequency signals
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
05
Measuring for diagnosis by means of electric currents or magnetic fields
055
involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
33
Arrangements or instruments for measuring magnetic variables
20
involving magnetic resonance
28
Details of apparatus provided for in groups G01R33/44-G01R33/6496
Applicants:
CEDARS-SINAI MEDICAL CENTER [US/US]; 8700 Beverly Boulevard Los Angeles, California 90048, US
Inventors:
HAN, Hui; US
LI, Debiao; US
Agent:
HUBER, Linda B.; US
BIRKENEDER, Erik J.; US
CHEN, Stephen W.; US
COSTELLIA, Jeffrey L.; US
EISENSTEIN, Ronald I.; US
GARETTO, Janet M.; US
GATZ, John C.; US
HAYES, Jennifer; US
KIM, TaeSoo Sean; US
LEVY, Seth D.; US
MATTAN-HUNG, Natalia; US
PROMMER, Peter J.; US
RESNICK, David S.; US
SWIATEK, Maria S.; US
TANG, Wayne L.; US
ZHU, Samantha; US
Priority Data:
62/564,88328.09.2017US
Title (EN) MAGNETIC RESONANCE COILS FOR SIMULTANEOUS IMAGING AND B0 SHIMMING
(FR) BOBINES DE RÉSONANCE MAGNÉTIQUE POUR IMAGERIE ET HOMOGÉNÉISATION B0 SIMULTANÉES
Abstract:
(EN) A coil assembly for MR imaging includes an RF coil element and a shim coil array with a shim coil element. The shim coil element is physically separated from the RF coil element. The shim coil element includes a DC current loop having a DC power supply connection to allow DC current to generate a local B0 magnetic field. The coil assembly simultaneously provides an RF mode for at least one of transmit or receive and a direct current mode to generate a local B0 magnetic field for at least one of B0 shimming an imaging space, MRI spatial encoding of tissue spins, or MRI temporal encoding of tissue spins. The mutual inductance between the shim coil element and the RF coil element is minimized by configuration of blocking elements in the shim coil in order to minimize the RF interaction there between.
(FR) Un ensemble bobine pour imagerie par résonance magnétique comprend un élément bobine RF et un réseau de bobines de correction d'inhomogénéité comportant un élément bobine de correction. L’élément bobine de correction est physiquement séparé de l’élément bobine RF. L’élément bobine de correction comprend une boucle de courant c.c. comportant une connexion d’alimentation en c.c. pour permettre au courant c.c. de générer un champ magnétique B0 local. L'ensemble bobine fournit simultanément un mode RF pour l'émission et/ou la réception et un mode courant continu pour générer un champ magnétique B0 local pour au moins une fonction parmi une correction B0 d'un espace d'imagerie, un codage spatial d'IRM de spins de tissus ou un codage temporel d'IRM de spins de tissus. L'inductance mutuelle entre l'élément bobine de correction et l'élément bobine RF est réduite à un minimum par configuration d'éléments de blocage dans la bobine de correction afin de réduire à un minimum l'interaction RF entre ceux-ci.
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Designated States: 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
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)
Publication Language: English (EN)
Filing Language: English (EN)