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Gradient field control method and device, magnetic resonance imaging equipment and medium

A control method and gradient field technology, which are applied in magnetic resonance measurement, measurement using nuclear magnetic resonance imaging system, measurement device, etc., can solve problems such as high cost and complex noise reduction scheme, and achieve cost saving and simplification of noise reduction. The effect of the plan

Active Publication Date: 2020-08-14
SHENZHEN INST OF ADVANCED TECH
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Problems solved by technology

[0005] In view of this, the embodiment of the present application provides a gradient field control method, device, magnetic resonance imaging equipment, and computer-readable storage medium to solve the problem of reducing the noise in the gradient field switching process in the existing magnetic resonance imaging technology When , there is a problem that the noise reduction scheme is more complicated and the cost is higher

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  • Gradient field control method and device, magnetic resonance imaging equipment and medium
  • Gradient field control method and device, magnetic resonance imaging equipment and medium
  • Gradient field control method and device, magnetic resonance imaging equipment and medium

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Embodiment Construction

[0060] 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.

[0061] see figure 1 , figure 1 It is an implementation flowchart of a gradient field control method provided by the embodiment of the present application. In this embodiment, the gradient field control method is used for gradient field switching control in the process of magnetic resonance imaging, and the subject of execution is the magnetic resonance imaging equipment.

[0062] Such as figure 1 The gradient field control method shown includes the following steps:

[0063] S11: Obtain preset scanning sequence parameters and control parameters; wherein the control para...

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Abstract

The method is suitable for the technical field of magnetic resonance, and provides a gradient field control method and device, magnetic resonance imaging equipment and a medium. The gradient field control method comprises the following steps: acquiring preset scanning sequence parameters and control parameters; determining the target area value of a to-be-adjusted signal gradient waveform according to the scanning sequence parameters and the control parameters, wherein the to-be-adjusted signal gradient waveform comprises a platform wave band and a gradient wave band; adjusting the waveform amplitude of the platform wave band of the to-be-adjusted signal gradient waveform according to a preset amplitude adjustment parameter; and based on the target area value and the first area value of the new platform wave band, smoothly adjusting the gradient wave band to obtain the new gradient wave band, so that the fall of the signal inflection point represented by the original gradient wave bandis reduced, the noise generated in the gradient field switching process does not need to be collected, the corresponding noise reduction signals are matched for noise reduction operation, the noise reduction scheme is simplified, and the noise reduction cost is saved.

Description

technical field [0001] The present application belongs to the field of magnetic resonance technology, and in particular relates to a gradient field control method, device, magnetic resonance imaging equipment and computer-readable storage medium. Background technique [0002] Magnetic Resonance Imaging (MRI) applies a radio frequency pulse of a specific frequency to a target in a static magnetic field to excite hydrogen protons in the target to generate magnetic resonance. After the application of radio frequency pulses is stopped, the protons in the target body will generate magnetic resonance MR signals during the relaxation process, and the usable MR signals can be obtained through the processing of the MR signal reception, spatial encoding and image reconstruction. Since each signal contains full-layer information during the magnetic resonance process, it is necessary to perform spatial positioning encoding on the magnetic resonance signal, namely frequency encoding and ...

Claims

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Application Information

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IPC IPC(8): G01R33/48G01R33/44G01R33/38
CPCG01R33/38G01R33/443G01R33/4818
Inventor 王海峰邹莉娴梁栋刘新郑海荣
Owner SHENZHEN INST OF ADVANCED TECH
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