Accuracyof ultrasonic-measurement-integrated simulation for three-dimensional blood flow in aneurysmal aorta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The Ultrasonic-Measurement-Integrated (UMI) simulation, in which feedback signals proportional to the optimal estimation of the difference in velocity vector against real blood flow obtained by Doppler velocities are applied at grid points in the feedback domain, has been developed to reproduce complicated hemodynamics. This paper evaluates UMI simulation for three-dimensional unsteady blood flow in aneurysmal aorta. We performed a numerical experiment of UMI simulation with an unsteady standard solution of the three-dimensional blood flow in an aneurysmal aorta with a realistic boundary condition. The UMI simulation was performed with an inaccurate boundary condition and various feedback arrangements assuming the acquisition of Doppler velocities in the aneurysmal domain or feedback domain. The application of feedback made the computational result approach to the standard solution, so that UMI simulation estimated the hemodynamic stresses more correctly than the ordinary simulation. Hence, UMI simulation of real blood flows will bring significant benefits for the clinical diagnosis and treatment of circulatory diseases.

Original languageEnglish
Title of host publication2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
Pages733-738
Number of pages6
EditionPART A
DOIs
Publication statusPublished - 2007 Dec 1
Event2007 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007 - San Diego, CA, United States
Duration: 2007 Jul 302007 Aug 2

Publication series

Name2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
NumberPART A
Volume2 FORA

Other

Other2007 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
CountryUnited States
CitySan Diego, CA
Period07/7/3007/8/2

Keywords

  • Aneurysm
  • Bio-fluid mechanics
  • Boundary condition
  • Color doppler imaging
  • Computational fluid dynamics
  • Measurement-integrated simulation
  • Ultrasonic measurement

ASJC Scopus subject areas

  • Mechanical Engineering
  • Condensed Matter Physics

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  • Cite this

    Funamoto, K., Saijo, Y., Hayase, T., & Yambe, T. (2007). Accuracyof ultrasonic-measurement-integrated simulation for three-dimensional blood flow in aneurysmal aorta. In 2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007 (PART A ed., pp. 733-738). (2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007; Vol. 2 FORA, No. PART A). https://doi.org/10.1115/FEDSM2007-37497