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相关概念视频

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.
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相关实验视频

Updated: Jan 11, 2026

Universal Hand-held Three-dimensional Optoacoustic Imaging Probe for Deep Tissue Human Angiography and Functional Preclinical Studies in Real Time
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实时异构螺旋波频谱方法用于跨腹部被动声学映射.

Yifei Li, Hui Zhu, Yi Zeng

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    此摘要是机器生成的。

    聚焦超声波 (FUS) 疗法使用被动声学映射 (PAM) 来监测洞穴. 一种新方法纠正了腹壁的声音速度变化,改善了图像质量和洞穴源定位,以实现更安全的FUS治疗.

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    科学领域:

    • 医疗成像医学成像
    • 声学物理 声学物理
    • 超声波治疗 超声波治疗

    背景情况:

    • 使用凸阵列的被动声学映射 (PAM) 在聚焦超声波 (FUS) 治疗中监测腔位.
    • 腹壁的声速 (SoS) 异质性导致相位偏差,降低PAM图像质量和FUS治疗安全性.

    研究的目的:

    • 开发一种方法来纠正 transabdominal PAM 中的 SoS 异质性.
    • 为了提高FUS治疗中空腔源定位的准确性.

    主要方法:

    • 在SoS异质介质中推导出波方程的通用解.
    • 提出了实时异质螺旋波谱 (HHWS) 方法用于腹PAM.
    • 使用in silico和in vitro实验验证实了HHWS方法.

    主要成果:

    • 通过HHWS方法证明了显著的相位偏差校正.
    • 与HWS方法相比,提高了图像质量和化源定位精度.
    • 实现了实时图像重建 (几十毫秒) 和双模式监控.

    结论:

    • HHWS方法有效地解释了跨腹部PAM中的SoS异质性.
    • HHWS增强了基于空腔的FUS治疗的安全性,有效性和控制.
    • 对于腹部FUS应用,实时双模式监控是可行的.