The invention relates to medicine, in particular to cardiology. The thicknesses of the basal and middle segments of the interventricular septum and of the posterior wall of the left ventricle are measured using an echocardiography procedure. If the measured values are not equal, a favourable outcome is predicted in the case of a coronary accident. If the measured parameters are equal, a comparison is made between the inner contour of the free wall of the left ventricle from the image obtained in the apical two-chamber view during the echocardiography procedure and a logarithmic curve having a curve angle equal to the tilt of the Earth's axis relative to the ecliptic axis, and an inevitable fatal outcome is predicted in the case of a coronary accident. If it is established that the inner contour of the free wall of the left ventricle in the apical two-chamber view is not described by a logarithmic curve having a curve angle equal to the tilt of the Earth's axis relative to the ecliptic axis, and the thicknesses of the basal and middle segments of the interventricular septum and of the posterior wall of the left ventricle are equal, an inevitable fatal outcome is predicted in the case of a coronary accident. The method makes it possible to simplify and expedite the process of prediction while maintaining a high degree of accuracy.L'invention se rapporte au domaine de la médecine, et notamment de la cardiologie. Le procédé consiste à mesurer les valeurs des épaisseurs des segments de base et central de la cloison interventriculaire, de la paroi arrière du ventricule gauche du coeur selon un procédé d'échocardiographie. Lors d'une inégalité des valeurs mesurées, on pronostique une issue favorable en cas d'accident coronarien. Lors d'une égaalité des paramètres mesurés, on effectue une confrontation du contour interne de la paroi libre du ventricule gauche à partir d'une image obtenue dans une position bicamérale apicale dans un processus d'une procédure d'échocardiograp
