WSS Descriptors in a Patient RCA Taking into Account the Non-linear Viscoelasticity of Blood

• Type: Chapter or Part of a Book
• Date: 2020

Authors

Ernesto Romano (Author) FEUP; Luísa Costa Sousa (Author) FEUP; Carlos Alberto Conceição António (Author) FEUP; Catarina Castro (Author) FEUP; S.I.S. Pinto (Author) FEUP

Book

Title: Developments and Novel Approaches in Biomechanics and Metamaterials, Advanced Structured Materials

Pages: 141-152

ISBN: 978-3-030-50463-2

Indexing

Scopus - 5 Citations

Scientific classification

CORDIS: Health sciences ; Technological sciences

FOS: Medical and Health sciences ; Engineering and technology

Other information

Authenticus ID: P-00S-H65

DOI: 10.1007/978-3-030-50464-9_9

Abstract (EN): Hemodynamic analyses, in patient-specific right coronary arteries (RCA) considering non-linear viscoelastic property of blood, have been underexplored in literature. Therefore, authors intend to evaluate and compare the relative residence time hemodynamic descriptor, and the tendency for atherosusceptible regions, in arteries with absence of atherosclerosis, when a purely shear-thinning model for blood (Carreau Model) or a non-linear viscoelastic model (multi-mode Giesekus model) are used for hemodynamic simulations. Ansys® software was chosen since it is a user-friendly software widely used by other authors who are interested in this research field. Carreau model is incorporated in Ansys® package software; however, the multi-mode Giesekus model was implemented and validated by authors in a previous work. Using the non-linear viscoelastic property of blood, the critical atherosusceptible regions in a patient-specific artery are larger than using the purely shear-thinning model. In the present patient case, some regions with high velocity gradients, mainly in bifurcations, have an increase of 87.5%. Therefore, the multi-mode Giesekus model, taking into account the complex property of blood, should be used in order to obtain an accurate hemodynamic simulation and accurate atherosusceptible regions. © 2020, Springer Nature Switzerland AG.

Language: English

Type (Professor's evaluation): Scientific

Notes: B. E. Abali and I. Giorgio (eds.), Developments and Novel Approaches in Biomechanics and Metamaterials, Advanced Structured Materials, 132, Chapter 9, pp.141-152, Springer Nature Switzerland AG, 2020

No. of pages: 12