ATRIAL FIBRILLATION ANALYZER, ATRIAL FIBRILLATION ANALYSIS SYSTEM, ATRIAL FIBRILLATION ANALYSIS METHOD, AND PROGRAM

摘要

An atrial fibrillation analyzer includes: an acquisition unit that acquires a waveform signal indicating a temporal change of a pulse wave or an electrocardiogram; an RR interval calculation unit that calculates a parameter corresponding to an average RR interval for each frame on the basis of a spectrum of each frame obtained by frequency analysis of the acquired waveform signal, and calculates an RR waveform signal indicating a temporal change of the parameter; a power calculation unit that calculates a temporal change of power of a predetermined frequency band in a frequency spectrum of the RR waveform signal; a variation coefficient calculation unit that calculates a variation coefficient of the average RR interval; an analysis unit that analyzes presence of atrial fibrillation on the basis of a set of the power and the variation coefficient; and a measurement unit that measures an amount of activity of a user.

主权项

1. An atrial fibrillation analyzer, comprising:
an acquisition unit that acquires a detected waveform signal indicating a temporal change of a detection result of a pulse wave or an electrocardiogram; a waveform storage unit that stores the acquired detected waveform signal; an RR interval calculation unit that calculates, on the basis of a frequency spectrum of each unit time obtained by frequency analysis of the acquired detected waveform signal, a parameter corresponding to an average RR interval every unit time; a power calculation unit that calculates power of a frequency band determined in advance in a frequency spectrum of an RR waveform signal indicating a temporal change of the average RR interval calculated by the RR interval calculation unit; a variation coefficient calculation unit that calculates a variation coefficient of the average RR interval in the RR waveform signal; an analysis unit that determines presence of atrial fibrillation at each time on the basis of a set of the power and the variation coefficient; a measurement unit that measures an amount of activity of a user; and a first storage unit that stores the amount of activity measured by the measurement unit and a time when the amount of activity is measured so as to match each other.