METHOD OF NON-INVASIVE DETERMINATION OF ELECTROPHYSIOLOGICAL CHARACTERISTICS OF HEART Russian patent published in 2013 - IPC A61B5/402 

FIELD: medicine.

SUBSTANCE: invention relates to medicine and is intended for modelling and visualisation of excitation spread in myocardium. Electrocardiogram is registered and final diastolic radius (FDR), final systolic radius (FSR) of LV cavity, final diastolic volume (FDV) and final systolic volume (FSV) of LV are determined. Frontal and left-side fluorographic pictures of patient's heart are registered. Geometric parameters of patient's heart are determined by the pictures. Realistic three-dimensional image of patient's heart is synthesised. FDR and FSR are replaced with real equivalent geometric parameters of patient's heart LV model. Spread of excitation wave in myocardium is modelled. Results of modelling are used to visualise spread of excitation wave in myocardium and to determine parameters of heart myohemodynamics in the process of excitation wave spread in myocardium. After that, distribution of potentials generated by heart on patient's trunk is calculated and model ECS is synthesised in points of registration of 12 standard leads. Model ECS is compared with registered ECS. Calculated parameters are corrected and electrophysiological characteristics of heart are visualised on three-dimensional model of heart by means of computer graphics.

EFFECT: method makes it possible to increase reliability of heart state diagnostics.

15 dwg