Analytically Computed Fractional Flow Reserve based on Coronary CT Angiography

2nd International Conference on Chemo and Bioinformatics ICCBIKG 2023 (371-374)

АУТОР(И) / AUTHOR(S): Aleksandar Milovanović, Velibor Isailović, Igor Saveljić, Nenad Filipović

Е-АДРЕСА / E-MAIL: acakg85@hotmail.com

Download Full Pdf   

DOI: 10.46793/ICCBI23.371M

САЖЕТАК / ABSTRACT:

Invasively determined Fractional Flow Reserve (FFR) has been recognized as a reliable tool for assessing coronary artery stenosis severity. Since the invasive method is associated with a risk of vessel injury due to pressure wire manipulation several non-invasive techniques have been developed. The objective of this paper is to propose an alternative, much less time-consuming, analytical solution based on Computed Tomography Angiography (CTA) images and the overall pressure drop calculation across the stenosis in the coronary artery.
The results obtained using this method are validated by comparing them with the clinical data for patients who underwent invasive coronary angiography as well as with the results obtained by using CFD simulation. FFR determined using the analytical method compared with the clinical and CFD ones differs by 4.5% and 3.9% respectively. This confirms that the analytically determined FFR can be reliable for the physiological assessment of coronary artery stenosis.

КЉУЧНЕ РЕЧИ / KEYWORDS:

coronary artery stenosis, fractional flow reserve, analytical method, CTA images

ЛИТЕРАТУРА / REFERENCES:

  • P. Libby, R.O. Bonow, D.L. Mann, et al., Braunwald’s Heart Disease, Single Volume: A Textbook of Cardiovascular Medicine, Elsevier, 12th edition (2022) p2032.
  • G.A. Roth, G.A. Mensah, C.O. Johnson, et al., Global Burden of Cardiovascular Diseases and Risk Factors, Journal of American College of Cardiology, 76(25) (2020) 2982–3021.
  • N.V.K.Pothineni, S. Subramany, K. Kuriakose, et al., Infections, atherosclerosis, and coronary heart disease, European Heart Journal, 38(43) (2017) 3195-3201.
  • V.L. Roger, A.S. Go, D.M. Lloyd-Jones, et al., Heart disease and stroke statistics-2011 update: A report from the American Heart Association, Circulation, 123 (2011) e18-e209.
  • P.D. Morris, R. Al-Lamee & C. Berry, Coronary physiological assessment in the catheter laboratory: haemodynamics, clinical assessment and future perspectives, Heart, 108 (2022) 1737-1746.
  • N.H. Pijls, J.A.van Son, R.L. Kirkeeide et al., Experimental basis of determining maximum coronary, myocardial, and collateral blood fow by pressure measurements for assessing functional stenosis severity, Circulation, 86(4) (1993) 1354-1367.
  • A. Milovanovic, I. Saveljic. & N. Filipovic., Numerical vs Analytical Comparison with Experimental Fractional Flow Reserve Values of Right Coronary Artery Stenosis. Technology and Health Care, 31(3) (2023) 977-990.
  • G. Хајдин., Mehanika fluida, knjiga prva, šesto izdanje, Građevinski fakultet, Univerzitet u Beogradu (2021).
  • S. Sisavath, X. Jing, C.C Pain, & R.W. Zimmerman., Creeping flow through an axisymmetric sudden contraction or expansion, Journal of Fluids Engineering, 124 (2002) 273-278.
  • Y. Huo, M. Svenson, J.S. Choy et al., A validated predictive model of coronary fractional flow reserve, Journal of the Royal Society Interface, 9 (2012) 1325-1338.