公开(公告)号：EP4113146A1

公开(公告)日：2023-01-04

申请号：EP21182886.8

申请日：2021-06-30

申请人： Siemens Healthcare GmbH

发明人： MALLETT, Michael ,  THOMAS, Adrian Mark ,  POPESCU, Stefan ,  KRUG, Andreas ,  GEBHARDT, Matthias ,  BIBER, Stephan ,  GREISER, Andreas

IPC分类号： G01R33/38 ,  G01R33/381 ,  G01R33/385

摘要： The invention relates to a magnetic resonance imaging device (10) comprising a field generation unit (12) configured to provide a magnetic field in an imaging volume (30) of the magnetic resonance imaging device (10), wherein the field generation unit (12) comprises at least one magnet and wherein a surface directed towards the imaging volume (30) of the at least one magnet (13) comprises a concave shape, wherein a direction of access (16) to the imaging volume (30) is oriented essentially perpendicular to a main direction of magnetic field lines in the imaging volume (30).

公开(公告)号：EP4067926A1

公开(公告)日：2022-10-05

申请号：EP21182676.3

申请日：2021-06-30

申请人： Siemens Healthcare GmbH

发明人： KRUG, Andreas ,  MALLETT, Michael

IPC分类号： G01R33/38 ,  G01R33/385 ,  G01R33/3815

摘要： The invention relates to a magnetic resonance imaging device comprising a field generation unit configured to provide a magnetic field in an imaging volume of the magnetic resonance imaging device, wherein the field generation unit comprises at least one magnet, wherein the at least one magnet confines the imaging volume in at least one spatial direction and wherein the at least one magnet is curved in such a way, that a perpendicular distance between a line oriented along a direction of access to the imaging volume and a surface directed towards the imaging volume of the at least one magnet varies in the direction of access to the imaging volume.

公开(公告)号：EP4067925A1

公开(公告)日：2022-10-05

申请号：EP21165607.9

申请日：2021-03-29

申请人： Siemens Healthcare GmbH

发明人： MALLETT, Michael ,  THOMAS, Adrian Mark ,  GEBHARDT, Matthias ,  BIBER, Stephan ,  KRUG, Andreas ,  POPESCU, Stefan ,  LAUER, Lars ,  GREISER, Andreas

IPC分类号： G01R33/38

摘要： The invention relates to a magnetic resonance imaging device comprising a field generation unit for generating at least one magnetic gradient field, wherein the field generation unit comprises a first magnet and a second magnet confining an imaging volume of the magnetic resonance imaging device in two spatial directions and wherein the first magnet and the second magnet are arranged asymmetrically with respect to the imaging volume. The invention further relates to a method for acquiring an image of a diagnostically relevant body region of a patient with a magnetic resonance imaging device according to the invention.