Magnetic resonance imaging and the reduction of motion artifacts: review of the principles

摘要: Magnetic resonance (MR) imaging is a non-invasive diagnostic tool which widely used nowadays. In this paper, the basic principles of MR are explained and it shown how images can be reconstructed in case standard 2D Fourier Transform (2DFT) imaging. Several aspects signal encoding described. Unfortunately, motion patient during magnetic experiment often causes severe artifacts images. For example, 2DFT blurring ghosting seen appearance remains one major drawbacks methods to reduce have been proposed past. An overview on these based given paper. Both post-processing techniques that rely gating or use alternative acquisition schemes such as projection reconstruction discussed.