Dispersion sensitive factor calculation method, magnetic resonance imaging method and system

By acquiring the distribution of stimulus echoes in the echo signal in magnetic resonance imaging and calculating the weight coefficient of the target component, the problem that the diffusion sensitive factor cannot be accurately calculated in the prior art is solved, and a higher precision diffusion sensitive factor calculation and better diffusion weighted imaging effect are achieved.

CN120020580APending Publication Date: 2025-05-20WUHAN ZHONGKE IND RES INST OF MEDICAL SCI CO LTD
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Patent Information

Application Number
CN202311561893.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-11-20
Publication Date
2025-05-20

AI Technical Summary

Technical Problem

The prior art cannot accurately calculate the diffusion sensitivity factor in magnetic resonance imaging, mainly because the impact of stimulus echoes generated in the sequence on the calculation is not considered.

Method used

By obtaining the distribution of stimulation echoes in each target component in the echo signal, the weight coefficients of each target component relative to the echo signal are determined, and the target diffusion sensitivity factor is calculated based on these weight coefficients, target components and stimulation echo distributions.

Benefits of technology

The calculation accuracy of diffusion sensitive factors is improved, and the problem of inability to accurately calculate diffusion sensitive factors is solved, thereby improving the imaging quality of diffusion weighted imaging.

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Abstract

The invention relates to a dispersion sensitive factor calculation method and a magnetic resonance imaging method and system.The dispersion sensitive factor calculation method comprises the steps that the distribution condition of stimulation echoes in each target component in echo signals is obtained; the distribution condition indicates the forming times and positions of the stimulation echoes; determining a weight coefficient of each target component relative to an echo signal based on the distribution condition of stimulation echoes; and determining a target dispersion sensitive factor according to the weight coefficient, the target component and the distribution condition of the stimulation echoes. According to the method and the device, the influence of the stimulation echo generated in the sequence on the dispersion sensitive factor can be considered, the calculation precision of the dispersion sensitive factor is improved, and the problem that the dispersion sensitive factor cannot be accurately calculated is solved.
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