Electrocardiogram measuring apparatus and synthesized electrocardiogram generating method

摘要

An electrocardiogram measuring apparatus includes: a population coefficient calculating unit which calculates: first population coefficients; and second population coefficients; a personal coefficient calculating unit which calculates: first personal coefficients; and second personal coefficients; and a lead deriving unit which: calculates first personal coefficients of a specific subject based on: a relationship between a magnitude of a ratio of the first population coefficients to the second population coefficients, and a magnitude of a ratio of the first personal coefficients to the second personal coefficients; and second personal coefficients of the specific subject which are calculated based on A leads of the specific subject, the A leads being acquired by electrocardiogram measurement; and synthesizes B leads of the specific subject by using the first personal coefficients of the specific subject.

主权项

1. An electrocardiogram measuring apparatus comprising:
a lead waveform calculating unit which is configured to calculate a plurality of lead waveforms based on measured lead potentials of living body portions, the plurality of lead waveforms including A-lead waveforms and B-lead waveforms, wherein A is an integer of four or more and B is an integer of one or more, and the A-lead waveforms consisting of C-lead waveforms and D-lead waveforms, wherein C is an integer of three or more but less than A and D is A−C; a population coefficient calculating unit which is configured to calculate:
first population coefficients for a population of a predetermined number of persons which synthesize the B-lead waveforms from the A-lead waveforms; andsecond population coefficients for the population which synthesize the D-lead waveforms from the C-lead waveforms by using the A-lead waveforms; a personal coefficient calculating unit which is configured to calculate:
first personal coefficients for each person of the population which synthesize the B-lead waveforms from the A-lead waveforms, the first population coefficients being averages of the first personal coefficients; andsecond personal coefficients for each person of the population which synthesize the D-lead waveforms from the C-lead waveforms, the second population coefficients being averages of the second personal coefficients; and a lead deriving unit which is configured to:
calculate first personal coefficients of a specific subject based on:a relationship between a magnitude of a ratio of the first population coefficients to the second population coefficients, and a magnitude of a ratio of the first personal coefficients to the second personal coefficients; andsecond personal coefficients of the specific subject which are calculated based on A-lead waveforms of the specific subject, the A-lead waveforms being acquired by electrocardiogram measurement;synthesize B-lead waveforms of the specific subject by using the first personal coefficients of the specific subject; andadd the B-lead waveforms of the specific subject to the A-lead waveforms of the specific subject to generate a synthesized electrocardiogram.