Title:
信号解析装置、信号解析方法及びプログラム
Document Type and Number:
Japanese Patent JP7457267
Kind Code:
B2
Abstract:
A signal analysis device includes an analysis unit that, upon approximating a time waveform of an R wave by a waveform obtained by a difference between a first cumulative distribution function that is a cumulative distribution function of a first unimodal distribution and a second cumulative distribution function that is a cumulative distribution function of a second unimodal distribution, or upon approximating a time waveform of an R wave by a waveform obtained by adding a level value to the waveform, acquires at least some of parameters identifying at least one of the first unimodal distribution, the first cumulative distribution function, the second unimodal distribution, or the second cumulative distribution function, upon approximating a waveform obtained by reversing a time axis of a time waveform of a T wave by a waveform obtained by a difference between a third cumulative distribution function that is a cumulative distribution function of a third unimodal distribution and a fourth cumulative distribution function that is a cumulative distribution function of a fourth unimodal distribution, or upon approximating a waveform obtained by reversing a time axis of a time waveform of a T wave by a waveform obtained by adding a level value to the waveform, acquires at least some of parameters identifying at least one of the third unimodal distribution, the third cumulative distribution function, the fourth unimodal distribution, or the fourth cumulative distribution function, and acquires a parameter indicating activity of a myocardium of the heart by calculating acquired parameters.
Inventors:
Shingo Tsukada
Application Number:
JP2022573946A
Publication Date:
March 28, 2024
Filing Date:
December 02, 2021
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
A61B5/349
Domestic Patent References:
| JP2016533231A |
Other References:
BILLAH, Mohammad Saad, et al.,A novel method to model ECG beats using Gaussian functions,2011 4th International Conference on Biomedical Engineering and Informatics,2011年12月12日
KARCZEWICZ, Marta and GABBOUJ, Moncef,ECG data compression by spline approximation,Signal Processing,1997年
田中博,心電図逆問題における方法論,医用電子と生体工学,日本,2011年10月14日,第23巻第3号,第147頁-第158頁
Karoline Horgmo et al,Properties of cardiac conduction in a cell-based computational model,PLOS COMPUTATIONAL BIOLOGY,2019年05月31日,Vol.15.No.5,pp.1-35,doi.org/10.1371/journal.pcbi.1007042
KARCZEWICZ, Marta and GABBOUJ, Moncef,ECG data compression by spline approximation,Signal Processing,1997年
田中博,心電図逆問題における方法論,医用電子と生体工学,日本,2011年10月14日,第23巻第3号,第147頁-第158頁
Karoline Horgmo et al,Properties of cardiac conduction in a cell-based computational model,PLOS COMPUTATIONAL BIOLOGY,2019年05月31日,Vol.15.No.5,pp.1-35,doi.org/10.1371/journal.pcbi.1007042
Attorney, Agent or Firm:
Patent Attorney Shiga International Patent Office