期刊
JOURNAL OF CLINICAL MEDICINE
卷 8, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/jcm8010012
关键词
Hypertension; systolic blood pressure; photoplethysmograph; feature selection; risk classification
资金
- National Natural Science Foundation of China [61627807, 81873913]
- study abroad program for graduate student of Guilin University of Electronic Technology
- Natural Science Foundation of Guangxi [2017GXNSFGA198005]
- Promotion of Basic Ability of Young and Middle-aged Teachers in Universities of Guangxi [2018KY0217]
Hypertension is a common chronic cardiovascular disease (CVD). Early screening and diagnosis of hypertension plays a major role in its prevention and in the control of CVDs. Our study discusses the early screening of hypertension while using the morphological features of photoplethysmography (PPG). Numerous morphological features of PPG and its derivative waves were defined and extracted. Six types of feature selection methods were chosen to screen and evaluate these PPG morphological features. The optimal features were comprehensively analyzed in relation to the physiological processes of the cardiovascular circulatory system. Particularly, the intrinsic relation and physiological significance between the formation process of systolic blood pressure (SBP) and PPG morphology features were analyzed in depth. A variety of linear and nonlinear classification models were established for the comparison trials. The F1 scores for the normotension versus prehypertension, normotension and prehypertension versus hypertension, and normotension versus hypertension trials were 72.97%, 81.82%, and 92.31%, respectively. In summary, this study established a PPG characteristic analysis model and established the intrinsic relationship between SBP and PPG characteristics. Finally, the risk stratification of hypertension at different stages was examined and compared based on the optimal feature subset.
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