Diffusion-tensor imaging method and system
A diffusion tensor imaging and diffusion tensor technology, which is used in diagnostic recording/measurement, medical science, sensors, etc., can solve problems beyond the patient's tolerance range, long diffusion tensor imaging time, and long sampling time, and achieve fast Diffusion tensor imaging, the effect of shortened acquisition time
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[0026] In order to solve the problem that the traditional diffusion tensor imaging takes too long, a diffusion tensor imaging method is proposed to realize fast diffusion tensor imaging.
[0027] Such as figure 1 The diffusion tensor imaging method shown includes the following steps:
[0028] In step S10 , K-space undersampling is performed on the imaging object in each diffusion gradient direction through the same variable density sampling method, to obtain K-space undersampling data in each diffusion gradient direction.
[0029] In the field of magnetic resonance, K space is the dual space of ordinary space under Fourier transform. Generally speaking, in K-space, because the energy of the image is mainly concentrated in the low-frequency area, and the information contained in the high-frequency area is very small, the variable density sampling method is used in random sampling, mainly for low-frequency signals, and for high-frequency areas. The signal is collected as littl...
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