title: A theoretical computerized study for the electrical conductivity of arterial pulsatile blood flow by an elastic tube model.
abstract: The electrical conductivity of pulsatile blood flow in arteries is an important factor for the application of the electrical impedance measurement system in clinical settings. The electrical conductivity of pulsatile blood flow depends not only on blood-flow-induced red blood cell (RBC) orientation and deformation but also on artery wall motion. Numerous studies have investigated the conductivity of pulsatile blood based on a rigid tube model, in which the effects of wall motion on blood conductivity are not considered. In this study, integrating Ling and Atabek's local flow theory and Maxwell-Fricke theory, we develop an elastic tube model to explore the effects of wall motion as well as blood flow velocity on blood conductivity. The simulation results suggest that wall motion, rather than blood flow velocity, is the primary factor that affects the conductivity of flowing blood in arteries.
authors.affiliation: Department of Biomedical Engineering, Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, No. 2, Linggong Rd., Dalian 116024, PR China; Department of Electronic Engineering, Dalian Neusoft University of Information, No. 8, Ruanjianyuan Rd., Dalian 116023, PR China.
authors.forename: Hua
authors.initials: H
authors.lastname: Shen
authors.affiliation: Department of Biomedical Engineering, Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, No. 2, Linggong Rd., Dalian 116024, PR China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhu
authors.affiliation: Department of Biomedical Engineering, Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, No. 2, Linggong Rd., Dalian 116024, PR China. Electronic address: krqin@dlut.edu.cn.
authors.forename: Kai-Rong
authors.initials: KR
authors.lastname: Qin
mesh_terms: D001158:Arteries / Q000502:physiology*; D003198:Computer Simulation; D004548:Elasticity; D004553:Electric Conductivity; D008954:Models, Biological; D011673:Pulsatile Flow
keywords: Arterial pulsatile blood flow; Elastic tube; Electrical conductivity; Rigid tube; Theoretical modeling