![]() Hypertension is one of the most important risk factors for cardiovascular diseases. When calibrated, it shows great potential to serially monitor BP fluctuation, which can bring tremendous economic and health benefits. In conclusion, PPG may be used to calculate BP without calibration in certain populations. A simple personalized calibration reduces fitting errors significantly (n = 147), and good peripheral perfusion helps to improve the fitting accuracy. In the young population (50 years old) with the same categories, the fitting errors are 12.8 ± 9.0, 0.5 ± 8.2 and −14.6 ± 11.5 mmHg for SBP respectively. The algorithm combines photoplethysmography (PPG) waveform analysis and biometrics to estimate BP, and was evaluated in subjects with various age, height, weight and BP levels (n = 1249). We introduce a novel paradigm to unobtrusively and optically measure blood pressure (BP) without calibration.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |