A NOVEL CONTINUOUS AND NONINVASIVE MEASUREMENT FOR BLOOD PRESSURE BASED ON PHOTOPLETHYSMOGRAPHY

摘要

Implementation of continuous noninvasive blood pressure (NIBP) measurement is important for prevention and control of the cardiovascular disease. This paper study a novel continuous noninvasive blood pressure (BP) fitting method based on the photoplethysmography (PPG), electrocardiogram (ECG) and blood volume characteristics. The estimation model of systolic blood pressure (SBP) was established from ECG and PPG in Multiparameter Intelligent Monitoring in Intensive Care (MIMIC) II openness medical database. According to analysis of Beer-Lambert law applied in arterial blood characteristics and PPG waveform, the estimation model of differential pressure (DP) was constructed. Taking the SBP and diastolic blood pressure (DBP) from MIMIC II database as the gold standard value, the validation results show that the mean difference and standard deviation of the fitting results are within the standard range of (5 +/- 8) mm/Hg. The method proposed in this paper can effectively achieve continuous BP measurement.