动态磁共振成像中Bloch方程的数值模拟
数值分析
2017-09-12 v3 计算工程、金融与科学
摘要
磁共振成像(MRI)是一种广泛应用的非侵入性成像模态,基于非电离辐射,可提供活体组织的优质图像和软组织对比度。我们将修正的Bloch问题视为不可压缩流场中流动自旋的MRI模型。在建立相应演化问题的适定性之后,我们使用间断Galerkin方法分析其空间半离散化。高频时间演化需要适当显式且自适应的时域离散化。通过基本示例展示了该方法的适用性。
引用
@article{arxiv.1703.05985,
title = {Numerical Simulation of Bloch Equations for Dynamic Magnetic Resonance Imaging},
author = {Arijit Hazra and Gert Lube and Hans-Georg Raumer},
journal= {arXiv preprint arXiv:1703.05985},
year = {2017}
}
备注
Section 1 is improved with a description of the state-of-art. Some simulation results are added in section 5. Mathematical theorems and estimates are re-arranged