公开(公告)号：US10663538B2

公开(公告)日：2020-05-26

申请号：US15700124

申请日：2017-09-09

申请人： Wolfgang Bielmeier ,  Gerhard Brinker ,  Swen Campagna ,  Nikolaus Demharter ,  Bernd Erbe ,  Matthias Gebhardt ,  Helmut Lenz ,  Jürgen Nistler ,  Dominik Paul ,  Carsten Prinz ,  Gudrun Ruyters ,  Stephan Stöcker ,  Markus Vester

发明人： Wolfgang Bielmeier ,  Gerhard Brinker ,  Swen Campagna ,  Nikolaus Demharter ,  Bernd Erbe ,  Matthias Gebhardt ,  Helmut Lenz ,  Jürgen Nistler ,  Dominik Paul ,  Carsten Prinz ,  Gudrun Ruyters ,  Stephan Stöcker ,  Markus Vester

IPC分类号： G01R33/24 ,  G01R33/385 ,  G01R33/28

摘要： A method for monitoring a temporal change in a magnetic field in a magnetic resonance device, as well as an evaluation unit, a magnetic resonance device, and a computer program product for performing the method are provided. The method provides that a position-dependent magnetic field distribution that is produced by the plurality of gradient coils is provided with a plurality of monitoring points. In addition, time-dependent gradient values of the plurality of gradient coils are ascertained. Based on position-dependent magnetic field distribution and the time-dependent gradient values, the temporal change in the magnetic field is ascertained. The temporal change in the magnetic field is monitored by comparing the temporal change in the magnetic field with at least one limit value.

公开(公告)号：US20180074138A1

公开(公告)日：2018-03-15

申请号：US15700124

申请日：2017-09-09

申请人： Wolfgang Bielmeier ,  Gerhard Brinker ,  Swen Campagna ,  Nikolaus Demharter ,  Bernd Erbe ,  Matthias Gebhardt ,  Helmut Lenz ,  Jürgen Nistler ,  Dominik Paul ,  Carsten Prinz ,  Gudrun Ruyters ,  Stephan Stöcker ,  Markus Vester

发明人： Wolfgang Bielmeier ,  Gerhard Brinker ,  Swen Campagna ,  Nikolaus Demharter ,  Bernd Erbe ,  Matthias Gebhardt ,  Helmut Lenz ,  Jürgen Nistler ,  Dominik Paul ,  Carsten Prinz ,  Gudrun Ruyters ,  Stephan Stöcker ,  Markus Vester

IPC分类号： G01R33/24 ,  G01R33/385 ,  G01R33/28

CPC分类号： G01R33/24 ,  G01R33/288 ,  G01R33/385

摘要： A method for monitoring a temporal change in a magnetic field in a magnetic resonance device, as well as an evaluation unit, a magnetic resonance device, and a computer program product for performing the method are provided. The method provides that a position-dependent magnetic field distribution that is produced by the plurality of gradient coils is provided with a plurality of monitoring points. In addition, time-dependent gradient values of the plurality of gradient coils are ascertained. Based on position-dependent magnetic field distribution and the time-dependent gradient values, the temporal change in the magnetic field is ascertained. The temporal change in the magnetic field is monitored by comparing the temporal change in the magnetic field with at least one limit value.

公开(公告)号：US10101415B2

公开(公告)日：2018-10-16

申请号：US15488478

申请日：2017-04-15

申请人： Wolfgang Bielmeier ,  Gerhard Brinker ,  Nikolaus Demharter ,  Bernd Erbe ,  Matthias Gebhardt ,  Jürgen Nistler ,  Dominik Paul ,  Carsten Prinz ,  Gudrun Ruyters ,  Stephan Stöcker ,  Markus Vester ,  Swen Campagna

发明人： Wolfgang Bielmeier ,  Gerhard Brinker ,  Nikolaus Demharter ,  Bernd Erbe ,  Matthias Gebhardt ,  Jürgen Nistler ,  Dominik Paul ,  Carsten Prinz ,  Gudrun Ruyters ,  Stephan Stöcker ,  Markus Vester ,  Swen Campagna

IPC分类号： G01V3/00 ,  G01R33/28 ,  A61B5/055 ,  G01R33/54

摘要： A method for operating a magnetic resonance apparatus by a safety unit, taking into account persons fitted with an implant, a safety unit, a safety system, a magnetic resonance apparatus, and a computer program product are provided. The magnetic resonance apparatus includes a first part and a second part. The first part is operated separately from the second part and includes the safety unit. During an examination of a person fitted with an implant, the safety unit checks that the magnetic resonance apparatus, in a restricted operating mode, is complying with implant-conformant limit values.

公开(公告)号：US20170299667A1

公开(公告)日：2017-10-19

申请号：US15488478

申请日：2017-04-15

申请人： Wolfgang Bielmeier ,  Gerhard Brinker ,  Nikolaus Demharter ,  Bernd Erbe ,  Matthias Gebhardt ,  Jürgen Nistler ,  Dominik Paul ,  Carsten Prinz ,  Gudrun Ruyters ,  Stephan Stöcker ,  Markus Vester ,  Swen Campagna

发明人： Wolfgang Bielmeier ,  Gerhard Brinker ,  Nikolaus Demharter ,  Bernd Erbe ,  Matthias Gebhardt ,  Jürgen Nistler ,  Dominik Paul ,  Carsten Prinz ,  Gudrun Ruyters ,  Stephan Stöcker ,  Markus Vester ,  Swen Campagna

IPC分类号： G01R33/28 ,  G01R33/54 ,  A61B5/055

CPC分类号： G01R33/288 ,  A61B5/055 ,  G01R33/543

摘要： A method for operating a magnetic resonance apparatus by a safety unit, taking into account persons fitted with an implant, a safety unit, a safety system, a magnetic resonance apparatus, and a computer program product are provided. The magnetic resonance apparatus includes a first part and a second part. The first part is operated separately from the second part and includes the safety unit. During an examination of a person fitted with an implant, the safety unit checks that the magnetic resonance apparatus, in a restricted operating mode, is complying with implant-conformant limit values.