METHOD AND APPARATUS FOR DENOISING MAGNETIC RESONANCE DIFFUSION TENSOR, AND COMPUTER PROGRAM PRODUCT

摘要

A method and apparatus (200) for denoising a magnetic resonance diffusion tensor, and a computer program product (300). The method for denoising a magnetic resonance diffusion tensor comprises: collecting K-space data; obtaining a maximum likelihood estimation value of the diffusion tensor according to the collected K-space data; by means of the sparsity of the diffusion tensor and a diffusion parameter, taking the obtained maximum likelihood estimation value as an initial value to calculate a maximum posterior probability estimation value of the diffusion tensor; and calculating a diffusion coefficient according to the obtained maximum posterior probability estimation value. The method and apparatus (200) for denoising a magnetic resonance diffusion tensor, and the computer program product (300) solve the technical problem in the prior art that high-precision denoising of the diffusion tensor is realized while the scanning time is not added and the spatial resolution is not affected, thereby effectively suppressing noise in the diffusion tensor and improving the estimation precision of the diffusion tensor.