[Radionuclide ventriculography in the evaluation of the diastolic function of the left heart ventricle].
A maximum filling rate (FRmax), the time of reaching it (T-FRmax), the fraction of filling of the first and second diastolic thirds (FF1/3 and FF2/3), an increment of the volume in the first and second diastolic thirds (delta V1 and delta V2) were investigated on the basis of radionuclide ventriculography findings, 99mTc being used. CHD patients (n = 133) were characterized by a decrease in FF1/3, FRmax, an increase in T-FRmax changes in the ratio of delta V1 and delta V. A normal filling process was characterized by predominance of filling in the first diastolic third (the fast filling phase - delta V1 greater than greater than delta V2). Left ventricular diastolic dysfunction was characterized either by a homogeneous distribution of filling in the phase of fast or slow filling with practically equal increasing of volumes in the first and second diastolic thirds (delta V1 = delta V2) or by shifted filling during diastasis (delta V1 less than delta V2).
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D003327:Coronary Disease / Q000000981:diagnostic imaging / Q000503:physiopathology*; D003971:Diastole; D006439:Hemodynamics; D006801:Humans; D008955:Models, Cardiovascular; D015635:Radionuclide Ventriculography
Radionuklidnaia ventrikulografiia v otsenke diastolicheskoĭ funktsii levogo zheludochka serdtsa.