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46.  Cardiokymography.
1
UI  - 87042000
AU  - Tichonow KB
TI  - The geometry of the left ventricle in the isovolumic period.
AB  - Studying the wall movements of the left ventricle in the anterior (p.a.),
      RAO and in the left lateral projections produces nothing but incorrect
      results. Only the comparison of movements in the various blood-flow
      tracts (in LAO-projection) enables us to state that a real increase in
      the transverse diameter of the cavity takes place during the isovolumic
      period. This phenomenon occurs in the inflow tract on the side opposite
      to the interventricular wall (Margo obtusus). Roentgenological study in
      combination with other techniques for examining the heart movements
      during the isovolumic period shows that their character and type are
      mainly determined by the position of the body and the phase of the
      respiratory cycle. The best conditions for the analysis of changes in the
      geometry of the left ventricle are with the subject in the vertical
      position and in the LAO projection during deep inspiration.
MH  - *Cardiac Volume ; Cineangiography ; Echocardiography ; Electrokymography
      ; Heart Ventricle/*RADIOGRAPHY ; Human ; *Myocardial Contraction ;
      Systole
SO  - Radiologe 1986 Sep;26(9):446-51