Magnetic resonance parametric imaging method and equipment based on gradient waveform adjustment

Abstract

This application is applicable to the field of magnetic resonance technology, and provides a magnetic resonance parameter imaging method and equipment based on gradient waveform adjustment, wherein, a magnetic resonance parameter imaging method based on gradient waveform adjustment obtains preset scan sequence parameters and control parameters, according to the scan sequence parameters and control parameters, the target area value of the gradient waveform of the signal to be adjusted can be determined, wherein the gradient waveform of the signal to be adjusted includes a platform band and a gradual band, and the gradient waveform of the signal to be adjusted is adjusted according to the preset amplitude adjustment parameters Based on the waveform amplitude of the platform band, and then based on the target area value and the first area value of the new platform band, the gradient band is smoothly adjusted to obtain a new gradient band, which reduces the drop of the signal inflection point represented by the original gradient band. The noise generated during the gradient field switching process is collected, and then the noise reduction operation is performed by matching the corresponding noise reduction signal, which simplifies the noise reduction scheme and saves the cost of noise reduction.

Description

technical field [0001] The present application belongs to the technical field of magnetic resonance, and in particular relates to a magnetic resonance parameter imaging method, device, magnetic resonance imaging equipment and computer-readable storage medium based on gradient waveform adjustment. 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 magnet...

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Problems solved by technology

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

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