Quantification of Coronary Stenoses

  • K. Barth
  • A. Both
  • U. Faust
  • K. Wedekind
Conference paper

Abstract

With the rapidly increasing importance of coronary heart disease in Western industrial societies, selective coronary angiography has become an indispensable examination technique for the cardiologist. It allows the localization of stenoses which are usually the cause of diminished cardiac perfusion (Kober and Kaltenbach 1977). Dependent on the variable projection angles this requires a lot of diagnostic skill and experience. The final assessment of an obstruction still remains a difficult task. It is the absolute cross-sectional area of arterial lumen and the length of an obstruction that basically reduce cardiac flow. Nevertheless, in clinical routine only relative assessments are made, usually about lumen diameters. In this view, percent stenosis is given as
$${S_D} = {{{D_r} - {D_s}} \over {{D_r}}} \cdot 100\% $$
Other factors affecting hemodynamics are the surface structure of the calcified plaque or the eccentricity of an obstruction.

Keywords

Attenuation Peri 

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References

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Copyright information

© Springer-Verlag Berlin Heidelberg 1983

Authors and Affiliations

  • K. Barth
    • 1
  • A. Both
    • 2
  • U. Faust
    • 1
  • K. Wedekind
    • 2
  1. 1.Institut für Biomedizinische TechnikUniversität StuttgartStuttgart 1Deutschland
  2. 2.Abt. für KardiologieKatharinenhospital der Stadt StuttgartStuttgartDeutschland

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