公开(公告)号：US20240053424A1

公开(公告)日：2024-02-15

申请号：US18278084

申请日：2022-02-11

申请人： UNIVERSITÉ D'AIX-MARSEILLE ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  MULTIWAVE IMAGING SAS

发明人： Tania del Socorro VERGARA-GOMEZ ,  Megdouda BENAMARA ,  Elodie GEORGET PARIS ,  Redha ABDEDDAIM ,  Pierre JOMIN ,  Marc DUBOIS ,  Stefan ENOCH ,  Djamel BERRAHOU ,  Tryfon ANTONAKAKIS ,  Frank KOBER ,  David BENDAHAN

IPC分类号： G01R33/565 ,  G01R33/28

CPC分类号： G01R33/5659 ,  G01R33/288

摘要： A correction device for correcting a radio frequency magnetic field in magnetic resonance imaging, the device intended to be positioned on an area of a patient's body during a magnetic resonance imaging examination and including a substrate and at least one conductor track on the substrate, the at least one conductor track having at least two segments that are connected to each other by at least one reactive electrical component.

公开(公告)号：US20230324485A1

公开(公告)日：2023-10-12

申请号：US18011406

申请日：2021-06-15

申请人： UNIVERSITÉ D'AIX MARSEILLE ,  Centre National de la Recherche Scientifique ,  Ecole Centrale de Marseille ,  Multiwave Imaging

发明人： Marc Dubois ,  Kaizad Rustomji ,  Tania Del Socorro Vergara Gomez ,  Elodie Virginie Emilia Georget ,  Frank Kober ,  Redha Abdeddaim ,  Stanislas Pierre Alain Rapacchi ,  Stefan Enoch ,  Tryfon Antonakakis

IPC分类号： G01R33/389 ,  G01R33/34 ,  G01R33/48

CPC分类号： G01R33/389 ,  G01R33/34076 ,  G01R33/4806

摘要： A system is described for emitting a radiofrequency field for a magnetic resonance imaging device, including a volumetric antenna that emits a radiofrequency field, a device for homogenizing the radiofrequency field arranged between said volume antenna and a part of the body to be imaged. The device may include a first continuous metal track with an overall length of approximately 0.5 to approximately 1.5 times said wavelength of the radio frequency field. The first metallic track may occupy a surface with a largest dimension ranging between approximately 5% and approximately 15% of said wavelength of the radio frequency field. The first metal track is arranged in a pattern including a plane of symmetry that is normal to the electrical component of the radio frequency field, so as to give the device an electric dipole property including a natural frequency strictly greater than the frequency of the radio frequency field.