Total signal intensity of ultrasound laboratory vertical artifacts: A semi-quantitative tool

WFUMB Ultrasound Open Pub Date : 2024-02-08 DOI:10.1016/j.wfumbo.2024.100035

Joao Leote , Ricardo Loução , Madalena Aguiar , Mariana Tavares , Paloma Ferreira , Tiago Muxagata , Diana Guerreiro , Hermínia Dias , Jacobo Bacariza , Filipe Gonzalez

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Abstract

Quantitative approaches to improve lung ultrasound (LUS) vertical artifacts (VA) interpretation using total signal intensity (I_TOT) are not widely available for clinical practice. In this study, we aimed to i) develop a mathematical algorithm to extract I_TOT as a post-hoc LUS analysis and ii) confirm I_TOT utility by conducting laboratory VA research using an in vitro model with different acoustic channels.

The I_TOT was extracted from static and conventional LUS imaging recorded from in vitro models after varying the amount of water content or the pores size of the phantom, compared to a control condition.

The defined algorithm was able to calculate the I_TOT from all phantoms. Mean I_TOT showed statistically significantly different values across phantom categories.

We demonstrate that I_TOT may be able to differentiate the in vitro acoustic channels formed by increased water content from those with small size pores. However, the utility of this semi-quantitative tool in clinical practice or other LUS imaging data sets remains unclear.

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超声实验室垂直伪影的总信号强度：半定量工具

利用总信号强度（ITOT）改善肺部超声（LUS）垂直伪影（VA）判读的定量方法尚未广泛应用于临床实践。在这项研究中，我们的目标是：i）开发一种数学算法来提取 ITOT，作为 LUS 的事后分析；ii）通过使用不同声道的体外模型进行实验室 VA 研究，确认 ITOT 的实用性。我们证明，ITOT 可以区分因含水量增加而形成的体外声道和孔径较小的体外声道。然而，这种半定量工具在临床实践或其他 LUS 成像数据集中的用途仍不明确。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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WFUMB Ultrasound Open

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