Development of biomechanical dynamic vascular phantoms for pressure sensing technology assessment

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According to the American Heart Association cardiovascular disease affects 36.9% of the population, with approximately 30% of patients suffering from coronary artery disease. Acute Coronary Syndrome, associated with myocardial infarction, requires fast diagnosis and revascularization. Traditionally clinicians have chosen treatment methods by estimating the amount of flow going through the diseased coronary artery. Although several methods exist, catheter based pressure measurements are widespread among clinicians. Fractional flow reserve (FFR) is an index of the physiological significance of a coronary stenosis and is a measure of the maximal blood flow in a diseased artery to normal maximal flow. It is measured by comparing the pressure before and after the diseased arterial section, and thus indirectly estimating the loss of myocardial perfusion. Opsens has developed a FFR technology based on a photonic principle instead of the piezoelectric principle of the conventional technologies. This new photonic based technology has the potential to be more sensitive than current piezoelectric based technologies. Our partner is in the stage of evaluating the navigation and positioning precision of their technology (delivery in tortuous vessels and positioning at the stenotic site). We propose developing a dedicated dynamic phantom in-vitro model to study the navigation and positioning parameters and the associated hemodynamic disturbances associated with the technology.