控制流量空气喷射器用于in vivo近静态和动态弹性学与MHz光学一致性断层学
IEEE transactions on bio-medical engineering
|October 22, 2024
概括
开发了一种新的非接触式空气喷射激发系统,用于光学连贯弹性图 (OCE) 在体内测量像大脑这样的微妙组织. 该系统精确控制低力,在手术期间能够更安全,更准确地评估机械性能.
科学领域:
- 生物医学工程 生物医学工程
- 医学物理 医学物理
- 手术技术 手术技术
背景情况:
- 光学连贯弹性图 (OCE) 测量了组织的机械性质.
- 在体内测量像大脑这样的敏感组织需要低,可控的激发力 (<100μN).
- 在体内应用中,非接触式激发是首选的.
研究的目的:
- 开发和描述OCE的非接触式空气喷射激发源.
- 确保精确测量和控制激发力,以确保体内安全.
- 能够准确地确定敏感组织的机械参数.
主要方法:
- 设计并实施了一种带有力控制的空气喷气激发系统.
- 使用应用气流系统来测量和调节激发力.
- 将系统与3.2 MHz光学连贯系统集成.
主要成果:
- 该系统产生动态气泡 (<5毫秒) 和准静态力 (700毫秒).
- 力量范围:1μN至40mN,相关范围内的误差为0.1%-16%
- 启用了基于相位的,动态的,准稳定状态的OCE和非接触式内测量.
结论:
- 开发的空气喷气系统为OCE提供精确,低力,无接触激发.
- 该原型适合进一步开发为神经外科手术的临床工具.
- 这项技术在脑瘤手术期间增强了现场机械评估.
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