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Magnetic Force Optical Coherence Elastography at 1.5 Million A-lines Per Second

机译:每秒150万线的磁力光学相干弹性成像

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摘要

Optical Coherence Elastography (OCE) has been widely used to characterize tissue elasticity. In this paper we introduce a new excitation method using magnetic force to induce shear waves in phantoms and tissues. The shear waves were imaged using an Optical Coherence Tomography system with an A-scan rate of ~1.5 million a-lines per second and the speed of the waves were used to quantify elasticity of different concentrations of agar sampled and porcine liver. The OCE results acquired from this magnetic force excitation were compared with the mechanical compressional tests for validation. The results showed that magnetic force OCE and mechanical testing results were in good agreement, demonstrating the ability of magnetic force OCE to accurately quantify the Young's modulus of tissue.
机译:光学相干弹性成像(OCE)已被广泛用于表征组织弹性。在本文中,我们介绍了一种利用磁力在体模和组织中感应剪切波的新型激励方法。使用光学相干断层扫描系统对剪切波进行成像,A扫描速率为每秒约150万条a-线,并使用波的速度来量化不同浓度的琼脂和猪肝的弹性。从这种磁力激励获得的OCE结果与机械压缩测试进行了比较以进行验证。结果表明,磁力OCE与力学测试结果吻合良好,证明了磁力OCE能够准确定量组织的杨氏模量。

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  • 来源
  • 会议地点 San Francisco CA(US)
  • 作者单位

    Department of Biomedical Engineering, University of Houston, Houston, TX, 77204, USA;

    Department of Biomedical Engineering, University of Houston, Houston, TX, 77204, USA;

    Department of Biomedical Engineering, University of Houston, Houston, TX, 77204, USA;

    Department of Biomedical Engineering, University of Houston, Houston, TX, 77204, USA;

    Department of Biomedical Engineering, University of Houston, Houston, TX, 77204, USA;

    Department of Biomedical Engineering, University of Houston, Houston, TX, 77204, USA;

    Department of Biomedical Engineering, University of Houston, Houston, TX, 77204, USA;

    Department of Biomedical Engineering, University of Houston, Houston, TX, 77204, USA,Department of Laser and Biotechnical Systems, Samara State Aerospace University, Samara, 443086, Russia,Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX, 77030, USA;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Optical Coherence Elastography; magnetic force; elasticity;

    机译:光学相干弹性成像;磁力;弹性;

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