设计和评估可穿戴多模式射频传感系统,用于检测血管痴呆症
IEEE transactions on biomedical circuits and systems
|June 2, 2023
概括
一个新的可穿戴无线电频率 (RF) 传感系统提供了一个低成本的便携式解决方案,通过识别脑中风和缩来早期检测血管痴呆症. 该系统为传统昂贵的诊断方法提供了一个有希望的替代方案.
科学领域:
- 生物医学工程 生物医学工程
- 医疗成像医学成像
- 神经学 神经学
背景情况:
- 血管痴呆是导致死亡的主要原因,其特点是脑中风和缩.
- 早期发现这些病理对于预防脑损伤和指导治疗至关重要.
- 当前的诊断技术往往是昂贵的,需要大量的监督,缺乏可访问性.
研究的目的:
- 推出一种新的,低复杂度的可穿戴传感系统,用于检测脑中风和缩.
- 为早期神经退行检测提供多式无线电频率 (RF) 传感解决方案.
- 为受影响的大脑区域开发和验证一个定制的微波成像算法.
主要方法:
- 开发一个多模式射频传感系统.
- 实现一个定制的微波成像算法用于图像重建.
- 使用软件模拟,硬件建模和现实的脑幻影进行实验验证.
主要成果:
- 该系统有效地检测到血液密度的变化,人工中风目标 (27毫米3) 和脑缩腔 (58毫米3).
- 评估的安全指标,包括特定吸收率 (SAR < 1.4 W/Kg) 和导热率 (< 0.152 °C),证实了设备的安全性.
- 验证的血液密度变化的检测 (1050 ± 50 Kg/m3).
结论:
- 拟议的可穿戴射频传感系统是血管痴呆症检测的可行,高效,便携和低成本的替代方案.
- 这项技术为早期识别关键的神经退行变化提供了一种新的方法.
- 该系统显示了在诊断血管性痴呆症方面改善可访问性的潜力.
相关概念视频
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This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...


