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基于磁感应断层扫描的腹部出血的模拟研究

Ruijuan Chen¹, Yalin Du¹, Xinlei Zhu¹

¹School of Life Sciences, Tiangong University, Tianjin 300387, China.

The Review of scientific instruments

|October 1, 2024

概括

磁感应断层扫描显示出检测腹部出血的前景. 这种非侵入性成像技术使用相位差异来监测出血量和位置,有助于早期发现疾病.

科学领域:

生物医学工程生物医学工程
医疗成像医学成像
电磁主义电磁主义

背景情况:

腹部出血带来严重的危及生命的风险,需要及时诊断和管理.
磁感应断层扫描 (MIT) 为疾病查和持续患者监测提供了一种非侵入性,非放射性和非接触方法.

研究的目的:

开发和验证用于检测内部腹部出血的磁感应断层扫描模拟方法.
在一个现实的腹部组织模型中分析MIT对出血量和位置变化的敏感性.

主要方法:

构建一个现实的人类腹部组织电阻分布模型.
应用有限元法用于麻省理工学院内部出血模拟.
通过幻影实验验证模拟结果的验证.

主要成果:

灵敏度分析显示了可量化的相位差异,与出血半径和位置相关联.
提出了三个灵敏度指标 (Ar,Ax,Ay) 来监测出血.
在相差和出血参数 (半径,x/y轴位移) 之间证明了线性和准线性关系.

结论:

麻省理工学院的相差灵敏度可以作为监测腹内出血的发生和进展的定量指标.
这项研究为使用MIT在腹部出血疾病的初步查和持续监测提供了基础.

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Magnetic Resonance Imaging

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...