增强的针头可视化与反射调节的apodization 基于变换的超声波成像
IEEE transactions on ultrasonics, ferroelectrics, and frequency control
|September 18, 2023
概括
这项研究引入了一种新的反射调制化 (RTA) 方法,以改善干预期间的超声波针可视化. RTA有效地过反射,增强了无需复杂计算的针头成像.
科学领域:
- 医疗成像医学成像
- 超声波技术 超声波技术 超声波技术
- 干预程序 干预程序
背景情况:
- 超声波 (美国) 引导的干预在针头可视化方面面临挑战,原因是强烈的镜面反射.
- 传统的延迟和总束成形 (DASB) 被这些反射降低,阻碍了精确的针跟踪.
- 现有的方法难以区分针的反射与周围组织.
研究的目的:
- 提出和评估一种新的反射调制阿波迪化 (RTA) 方法,用于在超声波成像中增强针头可视化.
- 在美国指导的干预中,提高飞机内插入时针跟踪的准确性和清晰度.
- 解决传统DASB在处理来自针的镜面反射方面的局限性.
主要方法:
- 开发了一种反射调制化 (RTA) 技术,将从无线电频率 (RF) 数据的变换中集成时间和角度信息.
- 使用平面波成像来获取RF数据进行分析.
- 将拉顿域定向信息翻译成apodization中心地图,以便与DASB集成.
主要成果:
- 与传统的DASB相比,RTA方法显著提高了针接口的图像质量.
- 来自针头的镜面反射被有效地过,同时保留了周围组织的分散散射.
- 该方法在各种针角,尺寸和多个镜面接口中表现出强度,计算开销最小.
结论:
- 拟议的RTA方法为改善超声波指导干预的针头可视化提供了一个有希望的解决方案.
- 这种技术有助于更好地跟踪针和使用拉顿变换的超声波反射的特征.
- RTA有可能改善干预超声波的临床结果和诊断能力.
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