提高使用治疗式传感器获得的超声波图像的质量
Eui-Ji Shin1, Sunghun Park1, Sungwoo Kang2
1Department of Electronic Engineering, Sogang University, Seoul, Korea.
Ultrasonics
|June 10, 2023
概括
这项研究引入了一种新的方法,可以显著提高聚焦超声波 (FUS) 传感器的超声波图像质量. 该技术提高了信号与噪声的比率和分辨率,使FUS治疗更有效,更安全的临床使用.
科学领域:
- 医疗成像医学成像
- 超声波技术 超声波技术 超声波技术
- 生物医学工程 生物医学工程
背景情况:
- 聚焦超声波 (FUS) 治疗需要高质量的超声波成像来指导和监测.
- 目前的FUS传感器在空间分辨率,信号噪声比 (SNR) 和对比噪声比 (CNR) 上存在局限性,这阻碍了其成像能力.
研究的目的:
- 开发和验证一种新的方法来提高直接从FUS传感器获得的图像质量.
- 提高FUS传感器用于图像导向治疗的临床实用性.
主要方法:
- 员工使用编码激发来提高SNR.
- 利用Wiener解卷处理以解决由狭窄的光谱带宽引起的低轴分辨率.
- 使用不匹配的过器实现脉冲压缩,以改进信号处理.
主要成果:
- 在 -6dB的轴分辨率上取得了显著的改进,从1.27mm到0.37mm,相当于专用成像传感器 (0.33mm).
- 从16.5dB增加到29.1dB,从0.69增加到3.03,接近成像传感器的水平 (27.8dB和3.16).
结论:
- 拟议的方法大大提高了FUS传感器的图像质量.
- 这一进步具有显著的潜力,可以提高超声波图像引导的FUS治疗的有效性和安全性.
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