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• Technical Article •
The preliminary study of virtual magnetic resonance imaging in case of the main field inhomogeneity
LUO Guo-li  XIAO Liang 

DOI:10.3969/j.issn.1674-8034.2015.06.015.


[Abstract] Objective: The purpose of this paper is to design a magnetic resonance imaging simulator based-on Bloch equation, which can be used to simulate the impact of the main field inhomogeneity to the virtual magnetic resonance imaging (MRI).Materials and Methods: The magnetic resonance imaging simulator is implemented by C language. In the imaging process, the magnetization vector of each voxel in the virtual object is calculated by the discrete time solution of the Bloch equation. It assumes two different models of the main field inhomogeneity and assigns the spatial position matrix of inhomogeneity, which is used as the input of virtual MRI simulation. Compare the simulated images with the corresponding actual experimental images.Results: The MRI simulator allows the simulation of images impacted by the inhomogeneity of the main magnetic field. The imaging results can meet our expectation.Conclusion: The MRI simulator is helpful for engineering and scientific research in the analysis of the main magnetic field inhomogeneity effects on imaging.
[Keywords] Magnetic resonance imaging；Virtual imaging；Bloch equation；Main field

LUO Guo-li College of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China

XIAO Liang* College of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China

*Correspondence to: Xiao L, E-mail: xiaoliang@mail.buct.edu.cn

Conflicts of interest   None.

Received  2015-03-19
Accepted  2015-05-11
DOI: 10.3969/j.issn.1674-8034.2015.06.015
DOI:10.3969/j.issn.1674-8034.2015.06.015.

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