0

Full Content is available to subscribers

Subscribe/Learn More  >

Application of Tornado-Flow Fundamental Hydrodynamic Theory to the Study of Blood Flow in the Heart: Further Development of Tornado-Like Jet Technology

[+] Author Affiliations
L. A. Bockeria, A. Y. Gorodkov

Bakoulev Research Center for Cardiovascular Surgery, Moscow, Russia

G. I. Kiknadze, I. A. Gachechiladze

BASERT Co. Ltd., Moscow, Russia

Paper No. IMECE2011-63769, pp. 287-296; 10 pages
doi:10.1115/IMECE2011-63769
From:
  • ASME 2011 International Mechanical Engineering Congress and Exposition
  • Volume 2: Biomedical and Biotechnology Engineering; Nanoengineering for Medicine and Biology
  • Denver, Colorado, USA, November 11–17, 2011
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5488-4
  • Copyright © 2011 by ASME

abstract

It has been proved previously that the Tornado-like swirling flows have strictly ordered hydrodynamic structure which can be exhaustively described by using the exact solution of non-stationary Navier-Stokes and continuity equations for this class of flows [1]. Analysis of the geometry of the flowing channel of the left ventricle (LV) and aorta has shown close correlation between the shape of the cavities and intraventricular trabeculae orientation with the streamlines of Tornado-like flows. LV casts morphometry, MRI tomography and 4D velocimetry of the flow velocity field in the aorta, allowed to prove that the blood flow in the LV and aorta corresponds to this class of flows and may be described using the exact solution [7,8,10]. The current study proposes a method of measurement and calculation of the flow structural parameters derived from the exact solution, using LV cavity casts morphometry in humans and dogs and Multislice computed tomography (MSCT) of LV in two patients without severe cardiac pathology. It has been shown that the dynamic expression of intracardiac trabeculae and instant shape of LV cavity within a complete cardiac cycle correspond closely to the stages of single Tornado-like jet evolution. Since the intraventricular trabeculae profile is streamlined continuously by the blood flow, it should determine the hydrodynamic flow structure as an ensemble of guiding vanes. Therefore it has been concluded that the intraventricular flow dynamics can be analyzed and quantified using the exact solution. Application of this analysis to the MSCT visualization of LV cavity dynamics has shown the validity of this approach, which may be used for clinical diagnostic purpose. A realistic mathematical model of intraventricular blood flow has been proposed and evaluated. The results showed a good agreement between the model and known cardiac anatomy and function.

Copyright © 2011 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In