Monte Carlo simulation on effect of skull on the transmission of photons

被引：0
|
作者：
Song X. [1 ]
Wang R. [2 ]
Yu X. [2 ]
Lai Y. [1 ]
机构：
[1] School of Information Engineering, Nanchang University, Nanchang
[2] Jiluan Academy, Nanchang University, Nanchang
来源：
Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) | 2023年 / 51卷 / 06期
关键词：
brain imaging; Monte Carlo simulation; optical absorption density; optical fluence rate; photon transmission; skull;
D O I：
10.13245/j.hust.238792
中图分类号：
学科分类号：
摘要：
The transmission model of photons in the brain tissue was developed using Monte Carlo method． The photon transmission in the brain tissue with intact skull and without skull were compared，respectively，and the effect of the skull on the transmission of photons was analyzed by photon trajectory，optical energy flow rate and optical absorption density obtained． The photon trajectory has a wider range without skull，which is about twice of that of with intact skull． The distribution of optical absorption density and optical fluence rate is fusiform in general，and its radial distribution range is about twice of that of with intact skull． In the depth direction，the number of remaining photons reaching the brain (gray matter and white matter) without skull is about 6.35 times higher than that of with skull due to the weak absorption and scattering of saline and cerebrospinal fluid compared to the skull，allowing photons to travel deeper into the brain． © 2023 Huazhong University of Science and Technology. All rights reserved.
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页码：160 / 165
页数：5
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