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相关概念视频

Imaging Studies for Cardiovascular System I:Echocardiography01:17

Imaging Studies for Cardiovascular System I:Echocardiography

492
Cardiac imaging studies encompass a wide range of noninvasive and minimally invasive techniques designed to visualize the heart's structure and function in detail. One such technique is echocardiography, which uses high-frequency ultrasound waves to produce detailed images of the heart, known as echocardiograms.
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion,...
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Ultrasound II: Endoscopic Ultrasound and FibroScan01:25

Ultrasound II: Endoscopic Ultrasound and FibroScan

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Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):
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相关实验视频

Updated: Sep 15, 2025

A Real-Time Wearable Electromyography Measurement System for Small Animals
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一个基于单个传感器的可穿戴声谱系统.

Xiaoxiang Gao1,2, Xiangjun Chen3,2, Muyang Lin1,2

  • 1Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California San Diego, La Jolla, CA, USA.

Nature electronics
|July 18, 2025
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概括

这项研究引入了一种紧的可穿戴声谱系统,用于监测肌肉活动. 该设备可以使用超声波技术准确,长期无线跟踪肌肉运动和手势.

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科学领域:

  • 生物医学工程 生物医学工程
  • 可穿戴技术可穿戴技术
  • 超声波成像 超声波成像

背景情况:

  • 可穿戴式电肌图 (EMG) 提供肌肉活动检测,但信号质量和分辨率较低.
  • 现有的声谱系统经常使用重,耗电量大的传感器阵列,阻碍了移动性.

研究的目的:

  • 开发一个完全集成的,单个传感器可穿戴的声谱系统,用于不引人注目的肌肉监测.
  • 为了证明系统对肌肉活动和手势的长期无线跟踪能力.

主要方法:

  • 设计了一个可穿戴系统,配有定制单个超声波传感器,无线数据处理和集成电池.
  • 应用该系统来监测隔膜活动以识别呼吸模式.
  • 开发了一个深度学习算法,以将超声波数据与前臂肌肉活动相关联,用于手势跟踪.

主要成果:

  • 可穿戴系统提供了准确的长期无线肌肉监测.
  • 通过跟踪隔膜活动,成功识别了不同的呼吸模式.
  • 使用深度学习实现了13个手关节的连续跟踪,平均误差为7.9°.

结论:

  • 开发的单个传感器可穿戴声谱系统克服了以前技术的局限性.
  • 这项技术使先进的健康监测,身体运动跟踪和人机交互成为可能.