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Ziwei Chen, Guanghui Li, Zhongwei Bian

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

|December 3, 2025

概括

一种新的磁粒子成像 (MPI) 装置使用电扫描的无电场线 (FFL) 进行人体尺度成像. 这种新的架构在几秒钟内实现了快速的3D成像,推进了医疗诊断.

科学领域:

医疗成像医学成像
生物医学工程生物医学工程
物理物理学物理

背景情况:

磁粒子成像 (MPI) 是一种新兴的医学成像模式.
当前的MPI系统在扩展到人类规模的应用中面临限制.
临床翻译和更广泛的诊断能力需要取得进展.

研究的目的:

提出和模拟一个新的磁粒子成像 (MPI) 架构.
为了使人类规模的成像使用电扫描的无场线 (FFL).
为了展示潜在的临床应用的快速3D成像能力.

主要方法:

一种具有200毫米孔径的新型MPI扫描仪的设计.
使用三对环形梯度线圈对进行电控的FFL.
通过梯度线圈电流实现辐射平面旋转/转移和轴向扫描.

主要成果:

拟议的扫描仪实现了人类规模的电驱动扫描.
这样可以达到1.6 T/m的梯度强度.
模拟显示,3D成像可以在几秒钟内完成,功耗为63.6千瓦.

结论:

新型电扫描的FFL MPI架构适用于人类规模的应用.
这种设计为更快,更容易获得的MPI诊断提供了一条途径.
该系统展示了用于磁粒子成像的高效空间编码.

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