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- W2132292912 startingPage "1961" @default.
- W2132292912 abstract "Photoplethysmography (PPG) signals have been investigated at a new anatomical site, the anterior fontanelle (ANTF), on the hypothesis that blood supply at this location is preferentially preserved during cases of poor peripheral circulation which might cause the commercial pulse oximeters to fail to estimate accurately arterial blood oxygen saturation (SpO2). Two custom built reflectance PPG sensors have been developed, one for placement on the fontanelle and one on the periphery (foot). A PPG processing system and software were also developed to process the raw PPG signals and to estimate SpO2. A pilot study on sixteen babies, (9 male, 7 female) with a median age of 15.5 d (interquartile range = 46.8 d) and a median weight of 3.15 kg (SD = 0.93 kg), on a neonatal intensive care unit (NICU) has been carried out. PPG signals from the ANTF were of good quality and high signal-to-noise ratio. The amplitudes of the ANTF PPGs were found to be sensitive to changes in amplitude when amplitudes were observed at the reference PPG site. Bland-Altman analysis of the gold standard blood gas analysis reveals that all three sensors are inaccurate at SaO2 < 85–90 %, but the ANTF sensor shows better mean difference than the commercial device." @default.
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- W2132292912 date "2014-09-17" @default.
- W2132292912 modified "2023-10-02" @default.
- W2132292912 title "Investigation of photoplethysmographs from the anterior fontanelle of neonates" @default.
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- W2132292912 doi "https://doi.org/10.1088/0967-3334/35/10/1961" @default.
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