Multi-Manipulator Robotic System for Ultrasound Tomography: Design, Calibration, and Image Results

IF 0.8 4区医学 Q4 ENGINEERING, BIOMEDICAL

Journal of Medical Devices-Transactions of the Asme Pub Date : 2022-09-16 DOI:10.1115/1.4055655

Xiang Zhang, G. Ely, Bonghun Shin, B. Anthony

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引用次数: 0

Abstract

In this article, we present the design, validation, and imaging capabilities of a MEchanically Discretized Ultrasound Scanning Apparatus (MEDUSA) that supports flexible development of UST algorithms for complex tissue structures. Ultrasound tomography (UST) in the recent decade has shown promising results in quantitative soft-tissue imaging for clinical breast cancer diagnostics. There is growing interest in applying tomographic techniques to image broader tissue structures that include bone, where imaging is significantly more challenging due to strong impedance mismatches and complex wave propagation within the region. Changes in data acquisition strategy, algorithms, and system design are necessary to enable quantitative imaging of soft-tissue with bone inclusions. The 36 degree of freedom MEDUSA system allows free space positioning of acoustic transducers around an imaging target and enables investigation of imaging strategies not available in other UST systems. We present the mechanical design, parameter calibration, and tomographic imaging results using MEDUSA. Mono/Bi-static imaging and full-waveform inversion (FWI) results on real targets are presented and validates system performance capabilities for broader UST algorithm development for more complex tissue structures

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超声断层扫描的多机械手机器人系统:设计、校准和图像结果

在本文中，我们介绍了一种机电离散化超声扫描设备（MEDUSA）的设计、验证和成像能力，该设备支持复杂组织结构的UST算法的灵活开发。近十年来，超声断层扫描（UST）在用于临床乳腺癌症诊断的定量软组织成像方面显示出有希望的结果。人们对将断层摄影技术应用于包括骨骼在内的更广泛的组织结构成像越来越感兴趣，因为该区域内存在强阻抗失配和复杂的波传播，因此成像更具挑战性。数据采集策略、算法和系统设计的改变对于实现具有骨内含物的软组织的定量成像是必要的。36自由度MEDUSA系统允许在成像目标周围自由空间定位声学换能器，并能够研究其他UST系统中不可用的成像策略。我们介绍了MEDUSA的机械设计、参数校准和断层成像结果。给出了真实目标的单/双静态成像和全波形反演（FWI）结果，并验证了系统在更复杂组织结构的更广泛UST算法开发中的性能

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来源期刊

Journal of Medical Devices-Transactions of the Asme ENGINEERING, BIOMEDICAL-

CiteScore

1.80

自引率

11.10%

发文量

审稿时长

6-12 weeks

期刊介绍： The Journal of Medical Devices presents papers on medical devices that improve diagnostic, interventional and therapeutic treatments focusing on applied research and the development of new medical devices or instrumentation. It provides special coverage of novel devices that allow new surgical strategies, new methods of drug delivery, or possible reductions in the complexity, cost, or adverse results of health care. The Design Innovation category features papers focusing on novel devices, including papers with limited clinical or engineering results. The Medical Device News section provides coverage of advances, trends, and events.