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使用IMU辅助手动3D超声波成像,使用动作受限的扫描风扇扫描
Aparna Harindranath1,2, Komal Shah1, Dhinagaran Devadass3
1Centre for Product Design and Manufacturing, Indian Institute of Science, Bangalore, India.
Ultrasonic imaging
|April 10, 2024
概括
这项研究介绍了一种负担得起的3D超声波扫描仪,使用惯性测量单元 (IMU) 来改进诊断成像. 该系统可实现手动3D扫描,提高医疗应用的准确性和可用性.
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
- 生物医学工程 生物医学工程
背景情况:
- 传统的3D超声波系统昂贵而复杂.
- 手动3D超声波成像需要专门的设备来选择平面.
- 惯性测量单元 (IMU) 为跟踪探头运动提供了一个潜在的低成本解决方案.
研究的目的:
- 为了证明一个负担得起的IMU辅助手动3D超声波扫描仪 (IAM3US) 的可行性.
- 开发和评估使用消费级IMU进行3D超声波成像的原型系统.
- 评估系统在幻影和体内研究中用于诊断目的的可用性.
主要方法:
- 设计了一种原型IMU辅助的3D扫描仪,配有两种用于扫描风扇采集的探针支架设计.
- 利用基于卡尔曼波器 (KF) 的算法进行精确的探测器方向估计.
- 采用了对体积数据的改进的基于扫描线的重建方法.
- 通过幻影成像 (网球,胎儿幻影) 和体外产科扫描来评估系统.
主要成果:
- 成功集成了一种消费级的IMU,用于1-DoF扫描风扇3D超声波.
- 使用KF和扫描线方法证明了准确的方向估计和体积重建.
- 从重建的体积中获得可用的2D平面,用于手动测量,如双对面直径 (BPD).
- 初步的体外扫描显示了该系统的诊断潜力.
结论:
- 手动3D超声波扫描仪 (IAM3US) 是一个可行的,负担得起的解决方案.
- 开发的系统有可能提高超声波的诊断能力.
- 进一步验证和开发可以提高其用于各种应用的临床采用.
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