Method and device for the computer-aided processing of action potentials of the human or animal body measured with a plurality of electrodes

摘要

Method for the computer-aided processing of action potentials (vr) of the human or animal body (U) measured with a plurality of electrodes (2), wherein for a volume of the human or animal body (U) which is adjacent to the electrodes (2), the following steps are carried out: a plurality of different volume divisions (VA) of the volume are determined or predefined, each volume division (VA) dividing the volume into a multiplicity of adjoining volume segments (SE) of a plurality of volume elements and a segment for each volume segment (SE) Action potential (vSE) is assigned as a variable which is the same action potential for all volume elements within the respective volume segment (SE), and wherein all volume divisions (VA) comprise the same number of volume elements; for each volume division (VA) the following sub-steps i) and ii) are carried out: i) an equation system is determined in which the action potential (vr) measured at each electrode (2) is modeled as a sum of terms , where for each segment action potential (vSE) there exists a term representing the product of the segment action potential (vSE) with a predetermined factor which determines the influence of the segment action potential (vSE) on the respective electrode (2). represents measured action potential (vr); ii) the system of equations is solved, whereby values for the segment action potentials (vSE) and thereby values for the action potential of each volume element of the volume distribution (VA) are obtained; The values of the action potentials (vSE) of the corresponding volume elements of all volume divisions (VA) are averaged and the mean values per volume element thus obtained are output.