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Gradient sensitivity calibration method and device and magnetic resonance equipment

A calibration method and sensitivity technology, which can be used in measuring devices, instruments, measuring electrical variables, etc., and can solve problems such as low calibration accuracy

Pending Publication Date: 2022-04-01
WUHAN UNITED IMAGING LIFE SCI INSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the traditional gradient sensitivity calibration method of the magnetic resonance system has the problem of low calibration accuracy

Method used

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  • Gradient sensitivity calibration method and device and magnetic resonance equipment
  • Gradient sensitivity calibration method and device and magnetic resonance equipment
  • Gradient sensitivity calibration method and device and magnetic resonance equipment

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Embodiment Construction

[0042] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0043] The gradient sensitivity calibration method provided by the embodiment of the present application can be applied to such as figure 1 Magnetic resonance equipment shown. The magnetic resonance equipment includes a processor and a memory connected through a system bus, and a computer program is stored in the memory, and the steps of the following method embodiments can be performed when the processor executes the computer program. Optionally, the magnetic resonance equipment may also include a network interface, a display screen and an input device. Among them, the ...

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Abstract

The invention relates to a gradient sensitivity calibration method and device and magnetic resonance equipment. The method comprises the following steps: acquiring a three-dimensional image of a spherical die body; performing ellipsoid fitting based on the three-dimensional image to obtain a fitting size of a target axis of the ellipsoid; and calibrating the gradient sensitivity of the magnetic resonance system according to the fitting size and the actual size of the target axis of the spherical die body. By adopting the method, the calibration accuracy of the gradient sensitivity of the magnetic resonance system can be ensured.

Description

technical field [0001] The present application relates to the field of magnetic resonance technology, in particular to a gradient sensitivity calibration method, device and magnetic resonance equipment. Background technique [0002] In the magnetic resonance system, in order to ensure that the size of the acquired magnetic resonance image is consistent with the actual size, it is necessary to calibrate the gradient sensitivity of the magnetic resonance system. [0003] In traditional techniques, a spherical membrane is mostly used, and the gradient sensitivity of the magnetic resonance system is calibrated by using the consistency of the dimensions of the coronal, sagittal, and transverse planes at the center of the spherical phantom. [0004] However, the traditional method for calibrating the gradient sensitivity of the magnetic resonance system has the problem of low calibration accuracy. Contents of the invention [0005] Based on this, it is necessary to provide a gr...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/00
CPCG01R33/56G01R35/00
Inventor 周建帆邢斌雷红霞翟人宽邢峣
Owner WUHAN UNITED IMAGING LIFE SCI INSTR CO LTD