Magnetic resonance simulation of nanoparticles on homogeneous tissue in the presence of external magnetic field

Rezaei, Sahar; Riahi Alam, Nader

doi:10.22041/ijbme.2014.13046

Magnetic resonance simulation of nanoparticles on homogeneous tissue in the presence of external magnetic field

Document Type : Full Research Paper

Authors

Sahar Rezaei

Nader Riahi Alam

Medical Physics Department, Faculty of Medicine, Tehran University, Tehran, Lran

https://doi.org/10.22041/ijbme.2014.13046

Abstract

Detection of tumors at an early stage is important for the diagnosis of cancer. Therefore, to detect cancer cells it is necessary to distinguish between metastases from normal cells at an early stage. Due to the large size and coverage necessary to prevent chemical reactions of the current contrast agents in the body, they are just applicable to the extracellular space. Due to the small size of nanoparticles in comparison to cells, it is possible for them to enter the cells. Therefore, these materials are used for molecular imaging. In this paper, variations in the external magnetic field (Tesla) due to magnetic nanoparticles in homogeneous tissue were studied by the finite element method. For this purpose, a simulation was performed in the presence of magnetic nanoparticles and without it. By the finite element method, conversion of differential and integral governing equations to simple and solvable equations that are numerically stable was made possible. The results obtained indicate that the external magnetic field is intensified by the presence of magnetic nanoparticles.

Keywords

Simulation

Magnetic nanoparticles

Magnetic field

FEM method

Subjects

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