Invention Grant
US07876097B2 Local coil arrangement with magnetic field sensor and magnetic resonance system with such a local coil arrangement 有权
具有磁场传感器和具有这种局部线圈布置的磁共振系统的局部线圈布置

  • Patent Title: Local coil arrangement with magnetic field sensor and magnetic resonance system with such a local coil arrangement
  • Patent Title (中): 具有磁场传感器和具有这种局部线圈布置的磁共振系统的局部线圈布置
  • Application No.: US12266714
    Application Date: 2008-11-07
  • Publication No.: US07876097B2
    Publication Date: 2011-01-25
  • Inventor: Helmut Greim
  • Applicant: Helmut Greim
  • Applicant Address: DE Munich
  • Assignee: Siemens Aktiengesellschaft
  • Current Assignee: Siemens Aktiengesellschaft
  • Current Assignee Address: DE Munich
  • Agency: Schiff Hardin LLP
  • Priority: DE102007053429 20071109
  • Main IPC: G01V3/00
  • IPC: G01V3/00
Local coil arrangement with magnetic field sensor and magnetic resonance system with such a local coil arrangement
Abstract:
A local coil arrangement for a magnetic resonance apparatus has a support structure with an antenna arrangement and a sensor arrangement embedded in the support structure. The antenna arrangement has a number of magnetic resonance antennas. A magnetic resonance excitation signal can respectively be emitted by means of each magnetic resonance antenna and/or a magnetic resonance signal can respectively be received by means of each magnetic resonance antenna. The sensor arrangement has a number of magnetic field sensors and an evaluation circuit. The magnetic field sensors detect how large a static magnetic field is to which the local coil arrangement is exposed and output a corresponding output signal and supply a corresponding output signal to the evaluation circuit. The evaluation circuit determines a logical presence signal and outputs it. The value of the logical presence signal depends on whether a field strength of the static magnetic field is greater than a minimum field strength.
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