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1. (WO2004008169) MR METHOD UTILIZING MULTI-DIMENSIONAL RF PULSES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2004/008169    International Application No.:    PCT/IB2003/003058
Publication Date: 22.01.2004 International Filing Date: 08.07.2003
IPC:
G01R 33/48 (2006.01), G01R 33/561 (2006.01)
Applicants: PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH [DE/DE]; Steindamm 94, 20099 Hamburg (DE) (DE only).
KONINKLIJKE PHILIPS ELECTRONICS N.V. [NL/NL]; Groenewoudseweg 1, NL-5621 BA Eindhoven (NL) (AE, AG, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, BZ, CA, CF, CG, CH, CI, CM, CN, CO, CR, CU, CY, CZ, DK, DM, DZ, EC, EE, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GW, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MC, MD, MG, MK, ML, MN, MR, MW, MX, MZ, NE, NI, NL, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SI, SK, SL, SN, SY, SZ, TD, TG, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, YU, ZA, ZM, ZW only).
BOERNERT, Peter [DE/DE]; (DE) (For US Only).
ALDEFELD, Bernd [DE/DE]; (DE) (For US Only)
Inventors: BOERNERT, Peter; (DE).
ALDEFELD, Bernd; (DE)
Agent: VOLMER, Georg; Philips Intellectual Property & Standards GmbH, Weisshausstr. 2, 52066 Aachen (DE)
Priority Data:
102 32 342.9 17.07.2002 DE
Title (EN) MR METHOD UTILIZING MULTI-DIMENSIONAL RF PULSES
(FR) METHODE DE RESONANCE MAGNETIQUE (MR) FAISANT APPEL A DES IMPULSIONS RF MULTIDIMENSIONNELLES
Abstract: front page image
(EN)The invention relates to an MR method with a multi-dimensional RF pulse, in which method the variation in time of the magnetic gradient fields which are active simultaneously with the RF pulse is chosen to be such that a trajectory having a density which varies in space is followed in the k space. The excitation profile can thus be significantly improved while maintaining the same maximum rate of change of the gradient and while having to accept only an insignificant prolongation of the pulse duration.
(FR)L'invention concerne une méthode MR faisant appel à des impulsions RF multidimensionnelles. Dans cette méthode, la variation de temps de champs magnétique à gradient qui sont simultanément actifs avec les impulsions RF est choisie de sorte qu'une trajectoire présentant une densité variant dans l'espace est suivie dans l'espace k. Le profil d'excitation peut ainsi être considérablement amélioré, tout en maintenant le même taux maximal de changement de gradient, et en acceptant seulement une prolongation très faible de la durée d'impulsion.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)