Invention Publication
- Patent Title: METHOD AND DEVICE FOR CONTROLLING A MAGNETIC RESONANCE IMAGING SYSTEM
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Application No.: EP19174690.8Application Date: 2019-05-15
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Publication No.: EP3739353A1Publication Date: 2020-11-18
- Inventor: Bampton, Adrian , Biber, Stephan , Johnstone, Adam Paul , Nistler, Jürgen , Potthast, Andreas , Vester, Markus , de Oliveira, Andre
- Applicant: Siemens Healthcare GmbH
- Applicant Address: Henkestraße 127 91052 Erlangen DE
- Assignee: Siemens Healthcare GmbH
- Current Assignee: Siemens Healthcare GmbH
- Current Assignee Address: Henkestraße 127 91052 Erlangen DE
- Main IPC: G01R33/389
- IPC: G01R33/389 ; G01R33/58 ; G01R33/3815
Abstract:
The invention describes a calibration method for calibrating a measuring element for determining the electric current I flowing through a basic-field magnet of a magnetic resonance imaging system, comprising the steps:
- performing a measurement with the measuring element,
- performing a frequency measurement in the magnetic field of the basic-field magnet with a frequency measuring unit,
wherein the measurement of the measuring element and the frequency measurement are corresponding to the same magnetic field of the basic-field magnet,
- calculating a calibration factor based on the deviation between the measurement of the measuring element and the frequency measurement,
- calibrating the measuring element or the electric current in the basic-field magnet based on the calibration factor.
The invention further describes a ramping method, a system for calibrating a measuring element, a magnet power supply unit, a control unit and a magnetic resonance imaging system.
- performing a measurement with the measuring element,
- performing a frequency measurement in the magnetic field of the basic-field magnet with a frequency measuring unit,
wherein the measurement of the measuring element and the frequency measurement are corresponding to the same magnetic field of the basic-field magnet,
- calculating a calibration factor based on the deviation between the measurement of the measuring element and the frequency measurement,
- calibrating the measuring element or the electric current in the basic-field magnet based on the calibration factor.
The invention further describes a ramping method, a system for calibrating a measuring element, a magnet power supply unit, a control unit and a magnetic resonance imaging system.
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