Visualization and numerical modeling of disturbed flows observed in cineangiography

R. Raul, W. J. Geckle, Thomas R Aversano, Gary D Walford

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

Abstract

A set of angiographically acquired images of steady control flows in constricted and unconstricted Plexiglas models and in a human coronary bypass graft was acquired. A set of flow sensitive parametric images was derived from those sequences. The Plexiglas arterial model (phantom) was designed specifically for this study. The parametric images were calculated using the contrast density curves obtained at each pixel in a region of interest in a sequence of angiographically acquired images. The calculated parameters described are a contrast velocity image derived from the slope of the contrast density curve, and an arrival time image of the contrast bolus. A numerical simulation of the contrast flows in the Plexiglas phantoms was also conducted and a synthetic arrival time parametric image was calculated which qualitatively validates the experimental results. This study indicates that parametric images offer an efficient means of identifying regions of recirculation and jetting velocity for the steady flow of Newtonian fluids examined, and may be of diagnostic value in the assessment of human vessels.

Original languageEnglish (US)
Title of host publicationProceedings - Computers in Cardiology, CIC 1992
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages323-326
Number of pages4
ISBN (Electronic)0818635525, 9780818635526
DOIs
Publication statusPublished - Jan 1 1992
Event1992 IEEE Conference on Computers in Cardiology, CIC 1992 - Durham, United States
Duration: Oct 11 1992Oct 14 1992

Publication series

NameProceedings - Computers in Cardiology, CIC 1992

Conference

Conference1992 IEEE Conference on Computers in Cardiology, CIC 1992
CountryUnited States
CityDurham
Period10/11/9210/14/92

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ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Health Informatics
  • Computer Science Applications
  • Biomedical Engineering

Cite this

Raul, R., Geckle, W. J., Aversano, T. R., & Walford, G. D. (1992). Visualization and numerical modeling of disturbed flows observed in cineangiography. In Proceedings - Computers in Cardiology, CIC 1992 (pp. 323-326). [269366] (Proceedings - Computers in Cardiology, CIC 1992). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CIC.1992.269366