Non-intervention monitoring and evaluating method for hypertension under non-clinical environment

Abstract

The invention provides a non-intervention monitoring and evaluating method for hypertension under a non-clinical environment. The method comprises steps of segmenting acquired electrocardiogram data to obtain an electrocardiosignal sequence taking a time window of 5 minutes as a unit, positioning the time of each heartbeat by using an overlapping sliding window algorithm, and calculating a primaryheartbeat interval sequence; correcting the acquired primary heartbeat interval sequence by adopting a threshold method; extracting linear domain, non-linear domain and waveform distribution morphological features from the heartbeat interval sequence of each time window, quantitatively calculating correlation between the heart rate variability linear domain and the non-linear domain features through a Pearson correlation analysis method, performing feature aggregation based on the correlation strength between the features, and selecting features through information gain to form feature subsets; and fusing the feature subset features, and constructing a hypertension evaluation model by using a random forest method. According to the method, finer granularity analysis is carried out, and evaluation accuracy rate of hypertension patients can reach 97.1%.

Description

technical field [0001] The invention belongs to the field of hypertension evaluation, and in particular relates to a non-intervention monitoring and evaluation method for hypertension in a non-clinical environment. Background technique [0002] Hypertension refers to a clinical syndrome characterized by increased systemic arterial blood pressure (systolic and / or diastolic blood pressure), which may be accompanied by functional or organic damage to the heart, brain, kidneys and other organs. It is a typical chronic disease. The number of hypertensive patients continues to rise. In 1975, there were about 594 million hypertensive patients in the world. By 2015, this number exceeded 1.1 billion. This means that since 1975, 30 years of Over time, the number of adults worldwide with high blood pressure has nearly doubled. In my country, hypertension is also one of the main diseases that threaten people's health. In 1959, 1979, 1991, 2002 and 2015, China conducted five surveys on ...

AI Technical Summary

Problems solved by technology

[0006] At present, blood pressure is mainly used to determine whether you have high blood pressure. One is to use a sphygmomanometer or a cuff to measure. Although the measurement results of this method are relatively accurate, it cannot continuously measure blood pressure and cannot monitor the dynamics of blood pressure changes.

The other is to use various sensors in the wearable device to measure the transit time of the pulse wave to indirectly calculate the blood pressure value. This method can be continuously monitored, but the accuracy is low

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