photoplethysmograph

(redirected from Photoplethysmography)

photoplethysmograph

light-emitting device used to determine skin blood flow
References in periodicals archive ?
The blood volume pulse sensor uses fingertip photoplethysmography to measure heart rate and monitor relative blood volume.
Like the G Watch R, LG s latest Android Wear device includes a photoplethysmography (PPG) sensor that can measure a wearer s heart rate and average pulse during exercise.
Then the polarized white-illuminated image can be viewed, along with six other images of the same skin spot: red-illuminated, green-illuminated, blue-illuminated, and infrared-illuminated, fluorescence video-image under UVA-irradiation and photoplethysmography video-image, reflecting the superficial microcirculation.
The app incorporates three facets of Hoyos Liveness: eye-tracking augmented sensing (ETAS), corneal photonic sensing (CPS), and photoplethysmography or vitals sensing (VS).
This multi-directional arterial supply provides strong, reliable photoplethysmography signals that are rapidly responsive to changes in the patient's arterial oxygen saturation.
Genital sexual response in women was assessed using vaginal photoplethysmography.
As a result, there was a very strong linear relationship between conventionally measured pulse pressure via finger photoplethysmography (Finometer (Finapres Medical Systems B.
This can be performed firstly with the use of light such as photoplethysmography (FPG) (pulsoxymeter) [Diaz-Arnold et al.
A study utilizing the Nielsen test, digital photoplethysmography, and measurements of platelet alpha 2-adrenergic receptors.
A photodiode detects changes in the amount of light absorbed by hemoglobin, and its output waveform is termed photoplethysmography, or PTG.
Two non-randomized interventional studies with CPAP intervention among women with preeclampsia and mild obstructive sleep apnoea reported on one hand a mean nocturnal decrease of 20 mmHg on beat-to-beat blood pressure monitoring with a single night of CPAP (116) and a normalization of cardiac output and 3 mmHg decrease among those with CPAP treatment whereas those without intervention increased by 3 mmHg on finger arterial photoplethysmography (117).
Watson, Secondary transform decoupling of shifted nonstationary signal modulation components: Application to photoplethysmography, Int.