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Elastic property attributes to photoacoustic signals: an experimental phantom study

机译:弹性属性归因于光声信号:一项实验幻象研究

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We report an experimental study that shows the attribution of the elastic property of light absorbing targets to the generation of ultrasound signals induced due to the photoacoustic effect. We investigated the variation in strength of the detected photoacoustic signals for various targets embedded in a background phantom with: (1) different elastic coefficients (94-346 kPa) and (2) various sizes (0.25-1.5 mm~2). The results show that photoacoustic signals increase with an increase in elastic coefficient (i.e., showing to contrast in elastic property) while it is independent of variation in target sizes. Quantitative (analysis) study, and 2D and 3D reconstructed images are also presented. This study demonstrates the feasibility of imaging elastic property using photoacoustic technique.
机译:我们报告了一项实验研究,表明光吸收目标的弹性属性归因于由于光声效应而引起的超声信号的产生。我们调查了嵌入背景幻影中的各种目标的检测到的光声信号强度的变化:(1)不同的弹性系数(94-346 kPa)和(2)各种尺寸的(0.25-1.5 mm〜2)。结果表明,光声信号随弹性系数的增加而增加(即,显示出弹性的对比),而与目标尺寸的变化无关。还提供了定量(分析)研究以及2D和3D重建图像。这项研究证明了使用光声技术成像弹性性能的可行性。

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