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可穿戴电阻断层扫描腕带用于非侵入性和持续性骨监测
Shuangye Xu1, Xiaowen Huang2, Zhiyi Zhou3
1Key Laboratory of MEMS of Ministry of Education, School of Integrated Circuits, Southeast University, Wuxi Campus, Zhuangyuan Road 5, Wuxi 214000, China.
ACS sensors
|June 26, 2025
概括
这项研究引入了一个可穿戴的腕带,使用电阻断层扫描 (EIT) 进行非侵入性,持续的骨监测. 对于跟踪骨折愈合和其他骨状况而言,EIT带显得有前途,而无需暴露于辐射.
科学领域:
- 生物医学工程 生物医学工程
- 医疗成像医学成像
- 可穿戴技术可穿戴技术
背景情况:
- 传统的医学成像技术,如数字放射学 (DR) 和计算机断层扫描 (CT),由于累积的辐射暴露,对持续的骨折愈合监测存在局限性.
- 需要对骨健康进行非侵入性的长期监测解决方案,特别是在愈合过程中.
研究的目的:
- 开发和验证可穿戴电阻断层扫描 (EIT) 腕带,用于非侵入性,持续监测手臂骨.
- 评估EIT腕带在检测骨传导率的变化,表明骨折愈合的能力.
主要方法:
- 使用EIT设计的16个电极腕带系统用于皮肤表面电流刺激和电压检测.
- 使用有限元建模来优化腕带配置,包括电极数量和刺激/获取模式.
- 用3D打印的骨头进行幻影实验,并对猪骨进行实体研究,以验证系统的准确性和监测能力.
主要成果:
- 通过EIT腕带,可以成功地以可接受的准确度重建前臂骨 (骨和半径) 的横截面图像.
- 半径上的2.5毫米断裂被检测为导电率的增加.
- 活体研究表明,EIT系统能够在猪骨中模拟骨折愈合过程中跟踪导电率变化.
结论:
- 开发的可穿戴EIT带提供了一种非侵入性和连续的手臂骨监测方法,对骨折愈合评估具有重大潜力.
- 这项技术对长期骨监测具有前途,并且可以适应其他骨,如骨和骨.
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