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Mathematical model for an accurate measurement of flow in blood vessels, considering their cyclic deformation in the time

机译：准确测量血管流动测量的数学模型，考虑到时期的循环变形

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摘要

The mathematical models, used for the electronic implementation of the method for measuring flow in a blood vessel, based in transit time estimation, not take into account the mechanical changes suffered by vessels during the cardiac cycle. In the paper, a mathematical model proposed for the characterization of this method of flow measurement, with a major precision, is presented. In this physical approach, it is assumed that both, the vessel radius and the wall thickness, change following the cyclic sequence of the cardiac function, as happens in reality. This could be useful as a support during the electronic design and implementations of new TTFM flow measuring technique, and also to quantify its real accuracy.
机译：用于电子实现的数学模型，用于测量血管中的流动的流量，基于传输时间估计，不考虑在心脏周期期间血管遭受的机械变化。 在本文中，提出了一种用于表征这种流量测量方法的数学模型，具有重大精度。 在这种物理方法中，假设血管半径和壁厚，按照现实情况发生的心脏函数的循环序列改变。 这可以用作新TTFM流量测量技术的电子设计和实现期间的支持，以及量化其实际精度。

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