Title:
METHOD OF ESTIMATING BLOOD PRESSURE USING PHOTOELECTRIC PLETHYSMOGRAM AND COMPUTER PROGRAM FOR BLOOD PRESSURE ESTIMATION
Document Type and Number:
Japanese Patent JP2022148276
Kind Code:
A
Abstract:
To propose a method of estimating blood pressure using a photoelectric plethysmogram that can realize highly accurate and versatile blood pressure estimation by using a multi-regression model capable of estimating blood pressure only from photoelectric plethysmogram data.SOLUTION: Provided is a method of estimating blood pressure using a photoelectric plethysmogram that performs normalization by Z-score normalization on a PPG feature amount as preprocessing to constitute a multi-regression model that estimates blood pressure on the basis of normalized feature amount data to thereby suppress the deterioration of estimation accuracy due to the difference between distributions of the PPG feature values for individual subjects, and that performs, as post-processing, blood pressure bias adjustment by using a difference of average SBPs between learned data and measured SBP data with respect to an estimated blood pressure to thereby suppress the deterioration of estimation accuracy due to the difference between distributions of SBPs.SELECTED DRAWING: Figure 1
Inventors:
ABE MAKOTO
FUJII TORU
FUJII TORU
Application Number:
JP2021049892A
Publication Date:
October 06, 2022
Filing Date:
March 24, 2021
Export Citation:
Assignee:
UNIV SHINSHU
International Classes:
A61B5/021; A61B5/02
Attorney, Agent or Firm:
Shiro Yokozawa
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