蒙特卡罗模拟在扩散加权成像序列中的应用。

Applied MRI Research, Department of Molecular Imaging and Theranostics, National Institute of Radiological Sciences.

NeuroPoly Lab, Institute of Biomedical Engineering.

Magn Reson Med Sci. 2021 Jun 1;20(2):222-226. doi: 10.2463/mrms.bc.2020-0013. Epub 2020 May 18.

We developed a Monte Carlo simulator for diffusion-weighted imaging sequences which displays the motion of water molecules and computes the dynamic phase dispersion due to the applied motion probing gradients. This simulator can be used to validate the analytical equations of diffusion models and understand their limitations due to their approximations. Here, we introduce the software and some specific use cases. The software can be downloaded from the following website: https://www.nirs.qst.go.jp/amr_diag.

我们开发了一种用于扩散加权成像序列的蒙特卡罗模拟器，该模拟器可以显示水分子的运动，并计算由于应用的运动探测梯度而产生的动态相位弥散。这个模拟器可以用来验证扩散模型的解析方程，并理解由于它们的近似而导致的限制。在这里，我们介绍一下这个软件及其一些具体的应用案例。这个软件可以从以下网址下载：https://www.nirs.qst.go.jp/amr_diag。