[Comparison of densitometric and morphometric measurements of global and regional functions using a fully digital subtraction unit].

The value of digital subtraction angiocardiography for evaluating left ventricular movement by a morphometric and densitometric technique was examined by animal experiments (dog). Reversible reduction of global and regional left ventricular function can be quantified by both methods equally well. For judging regional ejection fraction, sector display is more easily comprehended than an ejection-fraction map. For the estimation of global cardiac ejection fraction in 49 patients, morphometric diagnosis was clearly superior to cine cardio-angiography (rmorp. = 0.91; rdens = 0.65). For recognising and quantifying regional abnormalities of cardiac movement, semi-quantitative visual gradation is superior to densitometric measurements.