Abstract—Intravascular stents are tubular structures placedinto stenotic artery to expand the inside passage andimprove blood flow. The mechanical factors affect therestenosis after stenting and image-based simulation hasbecome a popular tool for acquiring information. The aim ofthis study was to demonstrate quantitatively andqualitatively the hemodynamic changes in coronary arteryafter stent implantation based on patient medical imagedata using computational fluid dynamics (CFD). Onepatient with coronary artery stenosis before and after stentimplantation were included. Based on the CT data, threedimensionalmodel of pre- and post-stenting models werebuilt. Commercial software Adina8.7 was used for CFDsimulation. After stenting, the simulation shows a reductionof wall pressure and wall shear stress and a more equal flowthrough arteries after stenting. CFD is a noninvasive tool todemonstrate changes of flow rate and flow pattern causedby stent implantation. The effect and possible complicationsof a stent implantation can be visualized.
 
Index Terms—Hemodynamics, stent intervention, numericalsimulation, coronary artery disease

Cite: Feng Gao, Hiroshi Okada, and Gang Li, "Hemodynamic Changes in Coronary Artery after Stent Implantation Based on Patient-specific Model", Journal of Medical and Bioengineering, vol. 2, no. 2, pp.98-102, 2013. doi: 10.12720/jomb.2.2.98-102