螺旋编码的全波形逆向式超声波计算机断层扫描.
Chenchen Zhou1,2, Guoao Ma1,2, Ying Li1,2
1Department of Biomedical Engineering, Fudan University, Shanghai, 200438, China.
The Journal of the Acoustical Society of America
|April 8, 2025
概括
全波形逆转 (FWI) 的新旋编码策略显著降低了肌肉骨超声计算断层扫描 (UCT) 的计算负载. 这种方法可以加速成像,同时提高图像质量和精度.
科学领域:
- 医疗成像医学成像
- 生物医学工程 生物医学工程
- 声学 声学 在声学方面
背景情况:
- 肌肉骨超声波成像带来了重大挑战.
- 全波形逆转 (FWI) 提供高分辨率超声波计算断层扫描 (UCT),但在计算上是密集的.
- 在FWI中大量的源导致大量的计算负担.
研究的目的:
- 开发一种源编码技术,以尽量减少肌肉骨FWI中的波场计算.
- 为了提高FWI性能,引入一种新的旋编码策略.
- 为了加速肌肉骨UCT,同时保持高成像质量.
主要方法:
- 开发了一种旋编码策略,并使用UCT配置中的环形数组应用于FWI.
- 声的直角性质被利用来缓解交叉通话器件.
- 编码全波形反转 (VE-FWI) 与传统的FWI和其他编码策略进行了比较.
主要成果:
- 与传统的FWI相比,VE-FWI将计算负载降低了数量级.
- 图像质量得到了提高,峰值信号与噪音比率增加了2.9%.
- 与传统编码策略相比,结构相似性指数的度量增加了4.7%.
结论:
- 线编码显著加速肌肉骨UCT.
- VE-FWI保持高图像质量,提供精度和计算效率.
- 这种技术为实际的肌肉骨成像应用提供了一个有前途的解决方案.
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