通过连续高强度聚焦超声波处理的组织凝结的时空空间监测与脉冲逆转剪切波弹性学
Wei-Cheng Hsiao1, Chia-Lun Yeh2, Yu-Chieh Jill Kao3
1Department of Medical Imaging and Radiological Sciences, College of Medicine, Chang Gung University, Taiwan.
Ultrasonics
|July 24, 2025
概括
脉冲逆转 (PI) 成像抑制高强度聚焦超声波 (HIFU) 干扰,增强剪切波弹性学 (SWE) 进行精确的组织监测. 这种非侵入性技术改善了HIFU治疗期间热反应的实时跟踪.
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 声学 声学
背景情况:
- 高强度聚焦超声波 (HIFU) 是一种非侵袭性废除技术.
- 在HIFU过程中超声监测受到声学干扰的阻碍.
- 准确的实时监测对于有效的HIFU治疗至关重要.
研究的目的:
- 将脉冲逆转 (PI) 成像与剪切波弹性图 (SWE) 集成为HIFU监控.
- 为了抑制HIFU诱导的文物,并改善弹性测量.
- 为了能够准确评估HIFU治疗期间的组织热反应.
主要方法:
- 应用脉冲逆转 (PI) 减去来抑制HIFU干扰.
- 剪波弹性图 (SWE) 用于测量组织弹性.
- 实验使用模仿组织的幽灵和ex vivo猪肝进行.
- 与传统方法和B模式成像相比,PI-SWE的性能得到了评估.
主要成果:
- PI处理有效消除了HIFU干扰,改善了剪切波跟踪和弹性重建.
- 在幻影研究中,PI-SWE表明时间噪声减少,弹性图统一性改善.
- 在体外实验中,PI-SWE准确地捕捉了热消融和组织凝结过程中的刚度变化.
- 与B模式成像相比,PI-SWE对机械变化的敏感性显著更高.
结论:
- 与剪切波弹性学集成的脉冲逆转在HIFU治疗期间提供了强大的,无干扰的监测.
- "PI-SWE"实时提供组织机械变化的准确量化评估.
- 这种技术具有重要的临床潜力,可以为精确的HIFU治疗指导提供准确的指导.
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