Current Project​

 

Wall Shear Stress (WSS, 1st figure) - Myocardial bridging is an abnormality where a segment of artery tunnels through the heart muscle. It presents as a dynamic stenosis with heart compression and relaxation. Clinical statistics show that a plaque is prone to be found in the upstream of bridging. A low but increasing wall shear stress may interpret this phenomenon via fluid-structure interaction study.

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Pressure drop (2nd figure) - A part of my project is to investigate the impact of some factors on myocardial bridging, such as lesion length, insertion of pressure wire, upstream plaque, etc. This picture shows that the pressure drop is not linear if a 0.014-inch pressure wire is inserted and a 50% upstream plaque is present. Therefore, the influence of these two factors is not additive.

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Education/Employment

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2017-present PhD Mechanical Engineering, UNSW, Sydney

2012-2016, BEng (Biomedical Engineering), Beijing Institute of Technology (BIT), China​

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Publications

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J. Yi, F.B. Tian, T. Barber. Impact of a Pressure Wire and Upstream Plaque on Myocardial Bridging. 6th International Conference on Computational and Mathematical Biomedical Engineering, 2019

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J. Yi, F.B. Tian, T. Barber. Dynamic Analysis of Myocardial Bridging: Impact of Heart Compression Force on Fractional Flow Reserve. 21st Australasian Fluid Mechanics Conference, 2018

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Wu, Z., Yi, J., Xu, H., Guo, W., Wang, L., Chen, D., Xiong, J.. The Significance of the Angle between Superior Mesenteric Artery and Aorta in Spontaneous Isolated Superior Mesenteric Artery Dissection. Ann Vasc Surg, 2017.

 

Mei, Y., Muller-Eschner, M., Yi, J., Zhang, Z., Chen, D., Kronlage, M., von Tengg-Kobligk, H., Kauczor, H. U., Bockler, D., Demirel, S.. Hemodynamics analyses in treated and untreated carotid arteries of the same patient: A preliminary study based on three patient cases. Biomed Mater Eng, 2015.