Shape sensed ultrasound probe for fractional flow reserve simulation
一种血流储备分数、感测系统的技术,应用在形状感测系统领域,能够解决扭曲、不正确测量等问题
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[0014] Fractional flow reserve (FFR) is a technique used in coronary catheterization to measure the pressure difference across, for example, a narrowed coronary artery. Pressure lines are commonly used in invasive procedures to measure the pressure difference before and after a stenosis, potential stenosis, or region of interest. According to the present principles, an alternative is employed by using a shape-sensing imaging probe, such as an intravascular ultrasound (IVUS) probe or an optical coherence tomography (OCT) imaging device, for the fractional flow reserve simulation. While IVUS (or OCT) collects continuous measurements of lumen diameter and vessel wall, even in the presence of heart beating and respiratory motion, shape sensing permits three-dimensional reconstruction of vessels. This information can be used to generate accurate three-dimensional or even four-dimensional models (spatial and temporal) of vessels as input for FFR calculations using eg computational f...
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