Method for estimating arrangement of electrodes on biological tissue

A method for estimating an arrangement of electrodes on biological tissue that estimates a number of and an arrangement of electrodes to be attached to biological tissue, in order to detect excitation wave of the biological tissue that becomes active with excitation by propagation of the excitation wave in the tissue,

• the method comprising:
• a signal obtaining step of setting an initial electrode array having a sufficient number of electrodes for detection of the excitation wave arranged and arrayed in a plane, as a first electrode array, and obtaining detection signals at respective electrodes when the electrodes are attached to the biological tissue by using the initial electrode array;
• a learned model obtaining step of using a plurality of input data based on detection signals obtained at respective electrodes in a plurality of second electrode arrays that are generated by eliminating a predetermined number of electrodes at random from the first electrode array, using an image of excitation wave in a process of obtaining the detection signals at the respective electrodes by using the initial electrode array, as teacher data, and learning a relationship between the input data and the image of the excitation wave by deep learning, so as to obtain a learned model;
• an electrode array selecting step of selecting a second electrode array corresponding to an analysis image that is best matched with the image of the teacher data, among a plurality of analysis images obtained by applying the plurality of input data to the learned model, as a selective electrode array;
• and
• an electrode arrangement estimating step of specifying the selective electrode array as an optimum electrode array and estimating a number of and an arrangement of electrodes in the optimum electrode array, as the number of and the arrangement of the electrodes to be attached to the biological tissue.