渐变频率超声波计算机断层扫描与波形反转
1School of Science and Engineering, University of Dundee, Nethergate, Dundee, DD1 4HN, Scotland, United Kingdom.
Biomedical physics & engineering express
|February 2, 2024
概括
这项研究引入了一种用于超声波计算机断层扫描 (USCT) 乳腺成像的新型阶段频率连续波形 (SFCW) 架构. 与传统脉冲系统相比,这种新的SFCW-USCT方法提供了更好的信号噪声比 (SNR) 和数据保真性.
科学领域:
- 医疗成像医学成像
- 生物医学工程 生物医学工程
- 超声波技术 超声波技术 超声波技术
背景情况:
- 乳腺成像的常规超声波 (US) 是取决于操作者和主观的.
- 超声波计算机断层扫描 (USCT) 为诊断US和乳房扫描提供了一个独立于操作者的替代方案.
- 传统的USCT系统使用脉冲传输和射频采样,在频率领域进行图像重建.
研究的目的:
- 提出和详细介绍一个新的USCT架构,基于阶段频率连续波形 (SFCW) 原则.
- 将拟议的SFCW-USCT架构与传统的脉冲USCT系统进行比较.
- 突出SFCW-USCT在SNR,吸收功率,数据保真和存储方面的优势.
主要方法:
- 开发了一个新的USCT架构,利用SFCW原则.
- 实施了一种连续传输方案,用于接收波形的同-丁阶段.
- 收集数据直接在频域通过连续传输不同频率的单个音调收集数据.
- 详细说明了SFCW-USCT系统的发射器和接收器路径.
主要成果:
- 通过SFCW-USCT方案,可以通过可编程的频率步骤直接在频率领域收集数据.
- 该系统有可能提高信号噪声比 (SNR) 和数据保真度.
- 与传统的脉冲USCT架构进行比较.
结论:
- 拟议的SFCW-USCT架构与传统的脉冲USCT系统相比,是一个有希望的进步.
- SFCW-USCT提供了对数据采集参数的增强控制,从而有可能提高成像质量.
- 需要进一步研究SNR,吸收功率,数据保真性和存储优势.
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