Abstract: A non-transitory computer-readable medium having stored a computer program causes a computer to realize the functions of: receiving electrocardiogram waveform data from first electrodes attached to a subject, the data indicating a plurality of electrocardiogram waveforms that are continuously generated on a time axis; storing the electrocardiogram waveform data in a storage section; calculating coefficients for deriving estimated electrocardiogram waveform data of the subject, from first electrocardiogram waveform data that are stored in the storage section; and deriving the estimated electrocardiogram waveform data of the subject, based on second electrocardiogram waveform data that are acquired after the first electrocardiogram waveform data are stored and the coefficients.

Abstract: An automatic measurement point correction method includes acquiring vital signs information waveform data indicating a vital signs information waveform having a plurality of waveforms which periodically appear on a time axis, determining a plurality of measurement points for measuring a predetermined measurement item of each waveform included in the vital signs information waveform, causing the vital signs information waveform and measurement point displayers to be displayed on a displaying section, correcting a first measurement point for measuring the predetermined measurement item of a first waveform of the plurality of waveforms, as a first correction, recording the corrected first measurement point as a reference measurement point, extracting a waveform which is analogous to the first waveform, from the plurality of waveforms, and automatically correcting a measurement point for measuring the predetermined measurement item of the extracted waveform, as a second correction.

Abstract: An automatic measurement point correction method includes acquiring vital signs information waveform data indicating a vital signs information waveform having a plurality of waveforms which periodically appear on a time axis, determining a plurality of measurement points for measuring a predetermined measurement item of each waveform included in the vital signs information waveform, causing the vital signs informal n waveform and measurement point displayers to be displayed on a displaying section, correcting a first measurement point for measuring the predetermined measurement item of a first waveform of the plurality of waveforms, as a first correction, recording the corrected first measurement point as a reference measurement point, extracting a waveform which is analogous to the first waveform, from the plurality of waveforms, and automatically correcting a measurement point for measuring the predetermined measurement item of the extracted waveform, as a second correction.

Abstract: 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.

Abstract: A TWA measuring electrocardiograph includes: a transformation coefficient storing section configured to store a transformation coefficient for deriving a Frank's vector electrocardiogram; an electrocardiograph controlling section configured to produce a scalar electrocardiogram from electrocardiographic signals of measurement electrodes adapted to be attached to a subject, and configured to derive the Frank's vector electrocardiogram from the scalar electrocardiogram by using the transformation coefficient; and a TWA measuring section configured to measure a presence of TWA based on the derived Frank's vector electrocardiogram.

Abstract: 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.

Abstract: A TWA measuring apparatus includes: an electrocardiograph controlling section which is configured to produce an electrocardiogram from electrocardiographic signals of a subject; and a TWA measuring section which is configured to select at least two waveforms that contribute to a measurement of TWA, from the electrocardiogram, and which is configured to measure a presence of TWA by using the selected at least two waveforms.

Abstract: A TWA measuring apparatus includes: an electrocardiograph controlling section which is configured to produce an electrocardiogram from electrocardiographic signals of a subject; and a TWA measuring section which is configured to select at least two waveforms that contribute to a measurement of TWA, from the electrocardiogram, and which is configured to measure a presence of TWA by using the selected at least two waveforms.

Abstract: An electrocardiogram analysis report simultaneously displays an electrocardiogram waveform collected from a subject and information about a measurement value calculated from the electrocardiogram waveform. The electrocardiogram analysis report includes a frontal plane display region configured to display a limb leads waveform included in the electrocardiogram waveform and information about a measurement value calculated from the limb leads waveform, and a horizontal plane display region configured to display a chest lead waveform included in the electrocardiogram waveform and information about a measurement value calculated from the chest lead waveform, wherein the information about the measurement value is displayed at a position spaced apart by a distance corresponding to a size of the measurement value in a direction from a predetermined center point to the relevant lead waveform in the frontal plane display region and the horizontal plane display region.

Abstract: A TWA measuring electrocardiograph includes: a transformation coefficient storing section configured to store a transformation coefficient for deriving a Frank's vector electrocardiogram; an electrocardiograph controlling section configured to produce a scalar electrocardiogram from electrocardiographic signals of measurement electrodes adapted to be attached to a subject, and configured to derive the Frank's vector electrocardiogram from the scalar electrocardiogram by using the transformation coefficient; and a TWA measuring section configured to measure a presence of TWA based on the derived Frank's vector electrocardiogram.