4.2 Article

TOWARD A NONINVASIVE MEASUREMENT METHOD OF CO2 ARTERIAL PRESSURE

期刊

出版社

WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0219519421500287

关键词

Drift flux model; carbon dioxide pressure; mixture pressure; radial velocity; ultrasound

向作者/读者索取更多资源

This paper presents a novel noninvasive process for in vivo measurement of carbon dioxide blood pressure by establishing linear mathematical relations between the mean mixture pressure and the radial velocity variation. A response model is proposed to describe the ultrasound signal backscattered by the solution, and a comparative study is conducted to determine the most appropriate method for computing the carbon dioxide pressure.
Until now, the measurement of carbon dioxide blood pressure is done ex vivo, using an invasive process. This paper describes a first step toward a novel noninvasive process for in vivo measurement of this pressure. As first approximation, the blood solution is modeled as a simple aqueous solution of carbon dioxide in a cylindrical rigid canalization. The drift flux model and the Young-Laplace equation are employed to describe the fluid behavior. The numerical model relates the carbon dioxide pressure through the mixture pressure and velocity. The spatial distributions of these parameters are implemented to create linear mathematical relations between the mean mixture pressure and the radial velocity variation. As long as we are interested in a noninvasive measuring of the carbon dioxide pressure, a response model is proposed to describe the ultrasound signal backscattered by the considered solution. The linear relations are applied to deduce the carbon dioxide pressure through the measured radial velocity difference, using two computing methods of ultrasound signal. A comparative study is made between them showing the more appropriate process to compute the carbon dioxide pressure.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.2
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据