Contec RS01 & OSCAR - Printable Version +- Apnea Board Forum - CPAP | Sleep Apnea (https://www.apneaboard.com/forums) +-- Forum: Public Area (https://www.apneaboard.com/forums/Forum-Public-Area) +--- Forum: Software Support Forum (https://www.apneaboard.com/forums/Forum-Software-Support-Forum) +--- Thread: Contec RS01 & OSCAR (/Thread-Contec-RS01-OSCAR) |
RE: Contec RS01 & OSCAR - gnluna - 10-23-2022 I am not professionally qualified to provide medical advice. A DIY approach to the identification of atrial fibrillation could involve comparison of photoplethysmogram (PPG) data from a RS01 with other sources, such as figure 1 here ( https://www.nature.com/articles/s41746-019-0207-9 ), figure 1 here ( https://www.heartrhythmopen.com/article/S2666-5018(20)30004-0/fulltext ), figure 2 here ( https://academic.oup.com/europace/article/21/7/1031/5481113 ), and figure 2 here ( https://www.cinc.org/archives/2017/pdf/049-011.pdf ). One could expect that a PPG with lower signal-to-noise ratio would result in a less accurate derivation of heart rate. From personal experience, I believe the RS01 applies automatic gain control to the PPG sensor signal, and it takes a moment to adjust. Additionally, I expect the RS01 uses some sort of filter when deriving the heart rate signal, at least so that the readings do not flutter rapidly for small changes or noise. I am not aware that the exact algorithms used are public knowledge. |