一个先进的模型,包括以高度为中心的传感器属性,用于超声计算机断层中3D全波形反转的超声计算机断层
IEEE transactions on ultrasonics, ferroelectrics, and frequency control
|September 8, 2023
概括
一个新的3D计算模型通过准确地表示以高度为重点的传感器来增强超声波计算机断层成像 (USCT). 这改善了全波形反转 (FWI) 以获得更清晰的乳腺组织成像,并减少了环阵列USCT系统中的工件.
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:
- 超声波计算机断层扫描 (USCT) 是一种新兴的医学成像技术,有可能改善人类健康结果.
- 全波形逆转 (FWI) 用于对乳腺组织声学特性进行高分辨率成像.
- 在环阵列USCT中当前的切片复制 (SBS) 并不能完全解释3D波物理和传感器聚焦,导致文物.
研究的目的:
- 为环阵列USCT开发一个以高度为中心的传感器的3D计算模型.
- 为了实现基于3D FWI的重建方法,这些重建方法包含传感器聚焦属性.
- 为了解决SBS重建的局限性,并减少USCT中的图像工件.
主要方法:
- 开发了一个以高度为重点的传感器的3D计算模型.
- 将传感器聚焦的数值描述纳入了FWI前模型.
- 在发射器和接收器模式中应用空间变化的时间延迟来模拟聚焦.
主要成果:
- 拟议的数值传感器模型得到了定量验证.
- 计算机模拟证明了该模型在用于环阵列USCT的3D图像重建中的有效性.
- 与传统的SBS方法相比,该方法显示了减少文物的潜力.
结论:
- 开发的3D传感器模型对于环阵列USCT中精确的3DFWI至关重要.
- 这一进步使乳腺组织声学特性能够更精确地成像.
- 这些发现为改善USCT系统和诊断能力铺平了道路.
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