公开(公告)号：EP4095538A1

公开(公告)日：2022-11-30

申请号：EP21176101.0

申请日：2021-05-26

申请人： Skope Magnetic Resonance Technologies AG

发明人： BRUNNER, David ,  GROSS, Simon

IPC分类号： G01R33/24 ,  G01R33/07 ,  G01R33/387 ,  G01R33/389 ,  G01R33/565 ,  G01R33/58 ,  G01R33/02

摘要： A magnetic resonance (MR) assembly (2) comprising a main magnetic field magnet providing a main magnetic field (B 0 ) along a main field axis (A) within a volume of interest (4), gradient coils (6) for generating gradient magnetic fields superimposed onto the main magnetic field according to an MR acquisition sequence or MR service sequence, a plurality of magnetic field probes (8, 8a, 8b, 8c, 8d; 10, 10a, 10b, 10c), each positioned within said volume of interest, each magnetic field probe generating a probe signal, and a controller (12) connected to each field probe for receiving and processing respective probe signals. To improve and extend the assembly's operation, said plurality of magnetic field probes comprises a plurality of at least three MR probes (8, 8a, 8b, 8c, 8d), each one of said MR probes comprising an MR active substance (14), means (18, 20, 22) for pulsed MR excitation of said substance and means (18, 20, 22) for receiving from said substance an MR probe signal indicative of a local magnetic field magnitude, and at least one Hall probe (10, 10a, 10b, 10c), each one of said Hall probes comprising a Hall element (26) having a respective Hall axis (H), means (28) for generating an electric current within said Hall element and means (30) for receiving a Hall probe signal indicative of a local magnetic field vector component along said Hall axis.