Evaluation of asynergies in the left ventricle using various metric methods. I. Findings in patients with normal heart function

: The delimitation of regional disturbances of contraction of the left ventricle (asynergies) demands knowledge of the behaviour of the contraction of the normal left ventricle. For the exact recognition of asynergies and for scientific inquiries in these cases the use of objective metrical methods is necessary. Therefore, in 14 patients without organic heart disease the behaviour of the regional contraction of the left ventricle was determined on the basis of the cineventriculography according to three different metrical methods (semiaxis, surface and angular method). For all 3 methods in the first oblique projection of 30 degree a larger mean amplitude of the contraction of the anterior wall was the result in contrast to the posterior wall. Consequently, different borderline regions for the anterior wall and the posterior wall must be established for the delimination of asynergies.