超声诊断中的创新性偏差校正与直接相位估计,以提高图像质量
Denis Leonov1,2, Nicholas Kulberg3, Tatyana Yakovleva3
1Moscow Center for Diagnostics and Telemedicine, Moscow, Russia. leonovd.v@ya.ru.
Physical and engineering sciences in medicine
|October 5, 2023
概括
这项研究引入了一种用于超声诊断的新型相位偏差校正方法,显著提高了回声信号强度,减少了角分布宽度. 该技术提高了医学成像质量,但需要特定的扫描仪功能.
科学领域:
- 医学放射学 医学放射学
- 应用数学 应用数学 应用数学
- 信息技术 信息技术 信息技术
背景情况:
- 超声波成像质量因异质组织内的超声速变化而降低.
- 超声波中的异常是由于独特的组织形态而对患者特定.
研究的目的:
- 在超声波诊断中引入一种新的,一般的方法来纠正相位偏差.
- 开发一种利用富里叶变换和合成光圈模式进行放电后校正的方法.
主要方法:
- 使用富里埃变换和合成光圈模式进行相位偏差校正.
- 估计超声波发射和接收后的偏差形状.
- 实验验证使用幻影,活体骨头和2MHz的扭曲层.
主要成果:
- 表明回声信号强度增加了2.75倍.
- 实现了近两倍的角分布宽度的减少.
- 通过实验数据证实了方法性能.
结论:
- 提出的方法有效地纠正了超声波成像中的相位偏差,提高了图像质量.
- 该方法依赖于光圈合成和原始射频数据,这限制了它对普通扫描仪的适用性.
- 可复制性是由公开可用的代码和数据集支持的.
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