面料在面料上:使用切割绘图器进行3T的导电面料可穿戴线圈
Thejas Vishnu Ramesh1, Sergio Martin-Moreno1, Folk W Narongrit1,2
1Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana, USA.
Magnetic resonance in medicine
|September 2, 2025
概括
导电性织物可穿戴线圈显著改善MRI扫描中的信号噪声比 (SNR) 和速度噪声比 (VNR). 这种新的制造方法可以在商业服装上使用合适的线圈,提高图像质量.
科学领域:
- 磁共振成像 (MRI)
- 生物医学工程
- 材料科学
背景情况:
- 使用导电线程的可穿戴MRI线圈具有高电阻,限制了信号噪声比 (SNR).
- 开发先进的线圈技术对于提高MRI诊断能力至关重要.
研究的目的:
- 为了证明导电性织物作为MRI应用中的线圈导体的实用性.
- 通过切割绘图器展示可穿戴线圈的制造方法.
主要方法:
- 使用切割绘图器从导电性织物制造单通道线圈,并将其与PCB和导电线圈进行评估.
- 开发并测试了14通道可穿戴的部阵列,分别用于椎和动脉的结构和4D流动MRI.
- 通过比较单通道线圈的SNR和B1+均性,以及与商业线圈对子阵列的SNR和VNR来评估性能.
主要成果:
- 导电性织物线圈显示SNR比PCB线圈增加6.7%,而SNR比导电线圈增加125.9%.
- B1+电场均度为96.4%,超过了PCB和导电线圈.
- 与商用线圈相比,14通道的部阵列在部脊柱成像中平均增加了51. 1%的SNR,在动脉4D流量MRI中增加了12. 0%.
结论:
- 导电性织物是制造高性能可穿戴MRI线圈的可行材料.
- 这种技术可以创建融入服装的可穿戴线圈,增强结构和4D流量MRI.
- 改进的SNR和VNR显示了可穿戴式线圈技术的先进诊断成像的潜力.
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