不同乳腺类别的磁性流体高温症:纳米粒子分布模式和温度依赖的 perfusion 模型对热传输的影响
Pratik Roy1, Ranjan Ganguly2, Nirmalendu Biswas2
1Department of Power Engineering, Jadavpur University, Salt Lake, Kolkata - 700106, India; Department of Electrical Engineering, Medinipur Sadar Government Polytechnic, Paschim Medinipur - 721102, India.
Journal of thermal biology
|February 17, 2026
概括
磁流体高温症 (MFH) 使用磁纳米颗粒来加热和破坏瘤. 这项研究模拟了纳米粒子分布和组织特性,以优化乳腺癌的MFH,发现辐射高斯分布最有效.
科学领域:
- 生物医学工程 生物医学工程
- 计算生物学 计算生物学
- 在瘤学瘤学.
背景情况:
- 磁性流体高温症 (MFH) 使用超偏磁纳米粒子 (SPMNPs) 针对恶性组织的热切除掉.
- 现有的MFH数值模型缺乏特定组织类型的整合,现实的纳米粒子分布和动态 perfusion 变化,阻碍了个性化治疗规划.
研究的目的:
- 开发一个模拟MFH的有限元框架,结合现实的SPMNP分布和动态 perfusion.
- 调查各种SPMNP分布和乳腺组织组成对MFH治疗疗效和安全的影响.
主要方法:
- 开发了基于Pennes生物热方程的有限元素框架,集成了SPMNP分布函数和对热损伤敏感的 perfusion 模型.
- 在临床相关的磁场条件下 (Hf值) 使用代表性乳房成分 (脂肪到密度) 和瘤类型的模拟MFH治疗.
- 分析了短暂的温度场,量化了热损伤,并评估了五个不同的SPMNP空间分布的处理质量.
主要成果:
- 富含脂肪的瘤比肌肉主导的瘤加热得更快,加热效率与乳房中的脂肪组织比例相关.
- 对于深层瘤,加热时间是健康组织损伤的更关键因素,而不是峰值温度.
- 辐射高斯SPMNP分布表明瘤加热和最小化邻近组织损伤之间的最佳平衡.
结论:
- 开发的框架为乳腺癌的个性化MFH治疗计划提供了关键的见解.
- 优化SPMNP分布,特别是辐射高斯图案,可以提高治疗结果并减少副作用.
- 作为局部乳腺癌治疗方法,MFH显示出显著的前景,强调需要时间控制和针对患者的具体方法.
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