Imaging magnetic field measurement and correction system for magnetic resonance device

一种磁共振、磁共振信号的技术，应用在磁共振测量、磁场的大小/方向、测量装置等方向，能够解决升高、成像磁场校正方案不够理想、成像磁场漂移等问题，达到提高成像质量的效果
CN106443535AActive Publication Date: 2017-02-22SHANGHAI UNITED IMAGING HEALTHCARE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI UNITED IMAGING HEALTHCARE
Publication Date
2017-02-22

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Abstract

The invention discloses an imaging magnetic field measurement and correction system for a magnetic resonance device. The system comprises a magnetic assembly, an acquisition unit, a processing unit, a correction unit and a control unit, wherein the magnetic assembly is used for scanning an object to be scanned; the acquisition unit is used for acquiring signals corresponding to an imaging magnetic field; the processing unit is used for processing the signals to obtain actual magnetic field intensity; the correction unit is used for correcting according to the deviation between the actual magnetic field intensity and the target magnetic field intensity; and the control unit is connected with the magnetic assembly, the acquisition unit, the processing unit and the correction unit, and is used for controlling the magnetic assembly to provide the imaging magnetic field, controlling the acquisition unit to acquire signals, controlling the processing unit to process the signals and controlling the correction unit to correct. The system can provide high-quality magnetic resonance images.
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Description

[0001] This application is a divisional case of a Chinese patent application submitted to the China Patent Office on May 21, 2013, with the application number 201310191003.3, and the title of the invention is "Method and System for Imaging Magnetic Field Measurement and Correction in Magnetic Resonance Device". technical field

[0002] The invention relates to magnetic resonance technology, in particular to a system for measuring and correcting an imaging magnetic field in a magnetic resonance device. Background technique

[0003] Magnetic Resonance Imaging (MRI) usually consists of five parts: superconducting coils, gradient coils, radio frequency coils, computer systems and other auxiliary equipment.

[0004] Wherein, the superconducting coil is the main device for generating the imaging magnetic field, and the gradient coil can provide the gradient field, and the gradient field cooperates with the main imaging magnetic field to form an imaging magnetic field (B for short) ...

Claims

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