一个模块化的开源平台,用于电阻断层扫描应用
Henry W Hall1, Lui Holder-Pearson1, Cong Zhou1
1Centre of Bioengineering, Department of Mechanical Engineering, University of Canterbury, Christchurch, New Zealand.
HardwareX
|September 25, 2025
概括
这项研究介绍了一种灵活的,开源的电阻断层扫描 (EIT) 设备,用于医学成像研究. 模块化设计和宽带宽使得可适应的成像协议成为可能,有助于EIT进一步发展.
科学领域:
- 医疗成像医学成像
- 生物医学工程 生物医学工程
- 电气工程 电气工程
背景情况:
- 与传统方法相比,电阻断层扫描 (EIT) 提供实时成像,成本和风险较低.
- 目前的EIT研究受限于缺乏空间分辨率和不灵活的商业设备,不适合协议定制.
- 开发可适应的EIT系统对于推进研究和克服现有的局限性至关重要.
研究的目的:
- 为了展示一种新的,灵活的,开源的电阻断层扫描 (EIT) 设备.
- 使研究人员能够轻松修改成像协议和硬件配置.
- 为了验证设备的功能和性能,用于EIT的研究.
主要方法:
- 设计了一个模块化的EIT设备,配有四个可互换的PCB,以便轻松修改硬件.
- 包含带有1kHz至2MHz带宽的电压采集板和高达2MHz的电流刺激板.
- 使用开源重建软件 (GREIT) 进行目标检测和性能评估.
主要成果:
- 在盐水中,EIT设备展示了准确的目标检测.
- 平均信号与噪声比 (SNR) 达到了85.4dB.
- 实现了平均同质重建准确度为85.5%.
结论:
- 开发的开源EIT设备具有功能,适合协助研究.
- 它的模块化设计和宽带宽使得可适应的成像协议更容易实现.
- 这种灵活的EIT系统可以加速医学成像研究的进步.
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