Magnetic resonance parameter imaging method and system
An imaging method and magnetic resonance image technology, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve the problems of slow imaging speed of magnetic resonance parameters, affecting the quality of parameter imaging, and easy introduction of motion artifacts, etc.
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[0069] Such as figure 1 Shown, in one embodiment, a kind of magnetic resonance parametric imaging method, comprises the following steps:
[0070] Step S20 , acquiring an undersampled signal corresponding to the magnetic resonance image sequence on the magnetic resonance apparatus, where the undersampled signal is an undersampled signal formed by performing magnetic resonance parameter imaging on the biological tissue.
[0071] Step S40, using the sparsity of the parameter image and the proton density distribution function, solving the parameter image and the proton density distribution function of the biological tissue through the maximum a posteriori probability estimation based on the model, the model is the magnetic resonance image sequence and the parameter Model the relationship between the image and the proton density distribution function.
[0072] In one of the embodiments, the undersampled signal d corresponding to the mth frame image of the magnetic resonance image ...
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